ELEMENTARY ALG.F/COLL.STUDENTS-W/MYMATH
ELEMENTARY ALG.F/COLL.STUDENTS-W/MYMATH
10th Edition
ISBN: 9780134776675
Author: Angel
Publisher: PEARSON
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Textbook Question
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Chapter 10, Problem 1MCT

Solve.

x 2 = 49

Expert Solution & Answer
Check Mark
To determine

Solve x2=49.

Answer to Problem 1MCT

The two solutions are: x=7&x=7.

Explanation of Solution

Given:

The given equation is: x2=49.

Concept Used:

The equation will be converted into the form: x2a2=0.

Then, we will factorize x2a2 into (x+a)(xa) as,

  x2a2=x2ax+axa2=x2xa+axa2=x(xa)+a(xa)=(x+a)(xa)

Now, we get the equation: (x+a)(xa)=0

Here, a product of several terms equals to zero.

When a product of two more terms equals to zero, then at least one term will be equal to zero.

So, we can equal the terms to zero: xa=0, x+a=0

These are two equations of single variable.

Simply solving them by addition and subtraction:

  xa=0xa+a=0+ax=a

And,

  x+a=0x+aa=0ax=a

Calculation/Explanation:

  x2=49x249=0x272=0(x+7)(x7)=0x+7=0;x7=0x=7;x=7

Conclusion:

The solutions of the equation is: x=7, x=7.

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Chapter 10 Solutions

ELEMENTARY ALG.F/COLL.STUDENTS-W/MYMATH

Ch. 10.1 - Prob. 11ESCh. 10.1 - Prob. 12ESCh. 10.1 - Prob. 13ESCh. 10.1 - Prob. 14ESCh. 10.1 - Prob. 15ESCh. 10.1 - Prob. 16ESCh. 10.1 - Prob. 17ESCh. 10.1 - Prob. 18ESCh. 10.1 - Prob. 19ESCh. 10.1 - Prob. 20ESCh. 10.1 - Prob. 21ESCh. 10.1 - Prob. 22ESCh. 10.1 - Prob. 23ESCh. 10.1 - Prob. 24ESCh. 10.1 - Prob. 25ESCh. 10.1 - Prob. 26ESCh. 10.1 - Prob. 27ESCh. 10.1 - Solve. (y9)2=16Ch. 10.1 - Prob. 29ESCh. 10.1 - Prob. 30ESCh. 10.1 - Prob. 31ESCh. 10.1 - Prob. 32ESCh. 10.1 - Prob. 33ESCh. 10.1 - Solve. (x+5)2=18Ch. 10.1 - Prob. 35ESCh. 10.1 - Prob. 36ESCh. 10.1 - Prob. 37ESCh. 10.1 - Prob. 38ESCh. 10.1 - Prob. 39ESCh. 10.1 - Prob. 40ESCh. 10.1 - Prob. 41ESCh. 10.1 - Prob. 42ESCh. 10.1 - Prob. 43ESCh. 10.1 - Prob. 44ESCh. 10.1 - Prob. 45ESCh. 10.1 - Prob. 46ESCh. 10.1 - Product of Numbers The product of two positive...Ch. 10.1 - Prob. 48ESCh. 10.1 - Prob. 49ESCh. 10.1 - Prob. 50ESCh. 10.1 - Prob. 51ESCh. 10.1 - Prob. 52ESCh. 10.1 - Prob. 53ESCh. 10.1 - Prob. 54ESCh. 10.1 - Prob. 55ESCh. 10.1 - Prob. 56ESCh. 10.1 - Prob. 57ESCh. 10.1 - Prob. 58ESCh. 10.1 - Prob. 59ESCh. 10.1 - Prob. 60ESCh. 10.1 - Prob. 61ESCh. 10.1 - Prob. 62ESCh. 10.1 - Prob. 63ESCh. 10.1 - Prob. 64ESCh. 10.1 - Prob. 65ESCh. 10.1 - Prob. 66ESCh. 10.1 - Prob. 67ESCh. 10.1 - Prob. 68ESCh. 10.1 - Prob. 69ESCh. 10.1 - Prob. 70ESCh. 10.2 - Fill in the blanks with the appropriate word,...Ch. 10.2 - Prob. 2ESCh. 10.2 - Prob. 3ESCh. 10.2 - Prob. 4ESCh. 10.2 - Prob. 5ESCh. 10.2 - Prob. 6ESCh. 10.2 - Prob. 7ESCh. 10.2 - Prob. 8ESCh. 10.2 - Prob. 9ESCh. 10.2 - Prob. 10ESCh. 10.2 - Prob. 11ESCh. 10.2 - Prob. 12ESCh. 10.2 - Prob. 13ESCh. 10.2 - Prob. 14ESCh. 10.2 - Prob. 15ESCh. 10.2 - Solve by completing the square. x2+9x+18=0Ch. 10.2 - Prob. 17ESCh. 10.2 - Solve by completing the square. y25y14=0Ch. 10.2 - Prob. 19ESCh. 10.2 - Prob. 20ESCh. 10.2 - Prob. 21ESCh. 10.2 - Prob. 22ESCh. 10.2 - Prob. 23ESCh. 10.2 - Prob. 24ESCh. 10.2 - Prob. 25ESCh. 10.2 - Prob. 26ESCh. 10.2 - Prob. 27ESCh. 10.2 - Prob. 28ESCh. 10.2 - Prob. 29ESCh. 10.2 - Prob. 30ESCh. 10.2 - Prob. 31ESCh. 10.2 - Prob. 32ESCh. 10.2 - Prob. 33ESCh. 10.2 - Prob. 34ESCh. 10.2 - Prob. 35ESCh. 10.2 - Prob. 36ESCh. 10.2 - Prob. 37ESCh. 10.2 - Prob. 38ESCh. 10.2 - Prob. 39ESCh. 10.2 - Prob. 40ESCh. 10.2 - Prob. 41ESCh. 10.2 - Prob. 42ESCh. 10.2 - Prob. 43ESCh. 10.2 - Prob. 44ESCh. 10.2 - Prob. 45ESCh. 10.2 - Prob. 46ESCh. 10.2 - Prob. 47ESCh. 10.2 - Prob. 48ESCh. 10.2 - Prob. 49ESCh. 10.2 - Prob. 50ESCh. 10.2 - Prob. 51ESCh. 10.2 - Prob. 52ESCh. 10.2 - Prob. 53ESCh. 10.2 - Prob. 54ESCh. 10.2 - Prob. 55ESCh. 10.2 - Prob. 56ESCh. 10.2 - Prob. 57ESCh. 10.2 - Prob. 58ESCh. 10.2 - Prob. 59ESCh. 10.2 - Prob. 60ESCh. 10.2 - Prob. 61ESCh. 10.2 - Prob. 62ESCh. 10.2 - Prob. 63ESCh. 10.2 - Prob. 64ESCh. 10.2 - Prob. 65ESCh. 10.2 - Prob. 66ESCh. 10.2 - Prob. 67ESCh. 10.2 - Prob. 68ESCh. 10.2 - Prob. 69ESCh. 10.3 - Fill in the blanks with the appropriate word,...Ch. 10.3 - Prob. 2ESCh. 10.3 - Prob. 3ESCh. 10.3 - Prob. 4ESCh. 10.3 - Prob. 5ESCh. 10.3 - Prob. 6ESCh. 10.3 - Prob. 7ESCh. 10.3 - Prob. 8ESCh. 10.3 - Prob. 9ESCh. 10.3 - Prob. 10ESCh. 10.3 - Prob. 11ESCh. 10.3 - Prob. 12ESCh. 10.3 - Prob. 13ESCh. 10.3 - Prob. 14ESCh. 10.3 - Prob. 15ESCh. 10.3 - Prob. 16ESCh. 10.3 - Prob. 17ESCh. 10.3 - Prob. 18ESCh. 10.3 - Prob. 19ESCh. 10.3 - Prob. 20ESCh. 10.3 - Prob. 21ESCh. 10.3 - Prob. 22ESCh. 10.3 - Prob. 23ESCh. 10.3 - Prob. 24ESCh. 10.3 - Prob. 25ESCh. 10.3 - Prob. 26ESCh. 10.3 - Prob. 27ESCh. 10.3 - Prob. 28ESCh. 10.3 - Prob. 29ESCh. 10.3 - Use the quadratic formula to solve each equation....Ch. 10.3 - Prob. 31ESCh. 10.3 - Use the quadratic formula to solve each equation....Ch. 10.3 - Prob. 33ESCh. 10.3 - Prob. 34ESCh. 10.3 - Prob. 35ESCh. 10.3 - Prob. 36ESCh. 10.3 - Prob. 37ESCh. 10.3 - Prob. 38ESCh. 10.3 - Prob. 39ESCh. 10.3 - Prob. 40ESCh. 10.3 - Prob. 41ESCh. 10.3 - Prob. 42ESCh. 10.3 - Prob. 43ESCh. 10.3 - Prob. 44ESCh. 10.3 - Prob. 45ESCh. 10.3 - Prob. 46ESCh. 10.3 - Prob. 47ESCh. 10.3 - Prob. 48ESCh. 10.3 - Prob. 49ESCh. 10.3 - Prob. 50ESCh. 10.3 - Prob. 51ESCh. 10.3 - Prob. 52ESCh. 10.3 - Prob. 53ESCh. 10.3 - Prob. 54ESCh. 10.3 - Prob. 55ESCh. 10.3 - Prob. 56ESCh. 10.3 - Prob. 57ESCh. 10.3 - Prob. 58ESCh. 10.3 - Prob. 59ESCh. 10.3 - Prob. 60ESCh. 10.3 - Prob. 61ESCh. 10.3 - Prob. 62ESCh. 10.3 - Prob. 63ESCh. 10.3 - Prob. 64ESCh. 10.3 - Prob. 65ESCh. 10.3 - Prob. 66ESCh. 10.3 - Prob. 67ESCh. 10.3 - Manufacturing Cost Repeat Exercise 67 for a cost...Ch. 10.3 - Prob. 69ESCh. 10.3 - Prob. 70ESCh. 10.3 - Prob. 71ESCh. 10.3 - Prob. 72ESCh. 10.3 - Prob. 73ESCh. 10.3 - Prob. 74ESCh. 10.3 - Prob. 75ESCh. 10.3 - Prob. 76ESCh. 10.3 - Prob. 77ESCh. 10.3 - Prob. 78ESCh. 10.3 - Prob. 79ESCh. 10.3 - Prob. 80ESCh. 10.4 - Fill in the blanks with the appropriate word,...Ch. 10.4 - Prob. 2ESCh. 10.4 - Prob. 3ESCh. 10.4 - Prob. 4ESCh. 10.4 - Prob. 5ESCh. 10.4 - Prob. 6ESCh. 10.4 - Prob. 7ESCh. 10.4 - Prob. 8ESCh. 10.4 - Prob. 9ESCh. 10.4 - Prob. 10ESCh. 10.4 - Prob. 11ESCh. 10.4 - Prob. 12ESCh. 10.4 - Prob. 13ESCh. 10.4 - Prob. 14ESCh. 10.4 - Prob. 15ESCh. 10.4 - Prob. 16ESCh. 10.4 - Prob. 17ESCh. 10.4 - Prob. 18ESCh. 10.4 - Prob. 19ESCh. 10.4 - Prob. 20ESCh. 10.4 - Prob. 21ESCh. 10.4 - Prob. 22ESCh. 10.4 - Prob. 23ESCh. 10.4 - Prob. 24ESCh. 10.4 - Prob. 25ESCh. 10.4 - Prob. 26ESCh. 10.4 - Prob. 27ESCh. 10.4 - Prob. 28ESCh. 10.4 - Prob. 29ESCh. 10.4 - Prob. 30ESCh. 10.4 - Prob. 31ESCh. 10.4 - Prob. 32ESCh. 10.4 - Prob. 33ESCh. 10.4 - Prob. 34ESCh. 10.4 - Prob. 35ESCh. 10.4 - Prob. 36ESCh. 10.4 - Prob. 37ESCh. 10.4 - Prob. 38ESCh. 10.4 - Prob. 39ESCh. 10.4 - Prob. 40ESCh. 10.4 - Prob. 41ESCh. 10.4 - Prob. 42ESCh. 10.4 - Prob. 43ESCh. 10.4 - Prob. 44ESCh. 10.4 - Prob. 45ESCh. 10.4 - Prob. 46ESCh. 10.4 - Prob. 47ESCh. 10.4 - Prob. 48ESCh. 10.4 - Prob. 49ESCh. 10.4 - Prob. 50ESCh. 10.4 - Prob. 51ESCh. 10.4 - Prob. 52ESCh. 10.4 - Prob. 53ESCh. 10.4 - Prob. 54ESCh. 10.4 - Prob. 55ESCh. 10.4 - Prob. 56ESCh. 10.4 - Prob. 57ESCh. 10.4 - Prob. 58ESCh. 10.4 - Prob. 59ESCh. 10.4 - Prob. 60ESCh. 10.4 - Prob. 61ESCh. 10.4 - Height Above Ground A ball is projected upward...Ch. 10.4 - Prob. 63ESCh. 10.4 - Maximum Area See Exercise 63. If 260 feet of...Ch. 10.4 - Prob. 65ESCh. 10.4 - Prob. 66ESCh. 10.4 - Prob. 67ESCh. 10.4 - Prob. 68ESCh. 10.4 - Prob. 69ESCh. 10.4 - Prob. 70ESCh. 10.4 - Prob. 71ESCh. 10.4 - Prob. 72ESCh. 10.4 - Prob. 73ESCh. 10.4 - Prob. 74ESCh. 10.4 - Prob. 75ESCh. 10.4 - Prob. 76ESCh. 10.4 - Prob. 77ESCh. 10.4 - Prob. 78ESCh. 10.5 - Prob. 1ESCh. 10.5 - Prob. 2ESCh. 10.5 - Prob. 3ESCh. 10.5 - Prob. 4ESCh. 10.5 - Prob. 5ESCh. 10.5 - Prob. 6ESCh. 10.5 - Prob. 7ESCh. 10.5 - Prob. 8ESCh. 10.5 - Prob. 9ESCh. 10.5 - Prob. 10ESCh. 10.5 - Prob. 11ESCh. 10.5 - Prob. 12ESCh. 10.5 - Prob. 13ESCh. 10.5 - Prob. 14ESCh. 10.5 - Prob. 15ESCh. 10.5 - Prob. 16ESCh. 10.5 - Prob. 17ESCh. 10.5 - Prob. 18ESCh. 10.5 - Prob. 19ESCh. 10.5 - Prob. 20ESCh. 10.5 - Prob. 21ESCh. 10.5 - Prob. 22ESCh. 10.5 - Prob. 23ESCh. 10.5 - Prob. 24ESCh. 10.5 - Prob. 25ESCh. 10.5 - Prob. 26ESCh. 10.5 - Prob. 27ESCh. 10.5 - Prob. 28ESCh. 10.5 - Prob. 29ESCh. 10.5 - Prob. 30ESCh. 10.5 - Prob. 31ESCh. 10.5 - Prob. 32ESCh. 10.5 - Prob. 33ESCh. 10.5 - Prob. 34ESCh. 10.5 - Prob. 35ESCh. 10.5 - Prob. 36ESCh. 10.5 - Prob. 37ESCh. 10.5 - Prob. 38ESCh. 10.5 - Prob. 39ESCh. 10.5 - Prob. 40ESCh. 10.5 - Prob. 41ESCh. 10.5 - Prob. 42ESCh. 10.5 - Prob. 43ESCh. 10.5 - Prob. 44ESCh. 10.5 - Prob. 45ESCh. 10.5 - Prob. 46ESCh. 10.5 - Prob. 47ESCh. 10.5 - Prob. 48ESCh. 10.5 - Prob. 49ESCh. 10.5 - Prob. 50ESCh. 10.5 - Prob. 51ESCh. 10.5 - Prob. 52ESCh. 10.5 - Prob. 53ESCh. 10.5 - Prob. 54ESCh. 10.5 - Prob. 55ESCh. 10.5 - Prob. 56ESCh. 10.5 - Prob. 57ESCh. 10.5 - Prob. 58ESCh. 10.5 - Prob. 59ESCh. 10.5 - Prob. 60ESCh. 10.5 - Solve the equation w2w5=3w6+34.Ch. 10.5 - Prob. 62ESCh. 10 - Solve. x2=49Ch. 10 - Prob. 2MCTCh. 10 - Prob. 3MCTCh. 10 - Prob. 4MCTCh. 10 - Prob. 5MCTCh. 10 - Prob. 6MCTCh. 10 - Prob. 7MCTCh. 10 - Prob. 8MCTCh. 10 - Prob. 9MCTCh. 10 - Prob. 10MCTCh. 10 - Prob. 11MCTCh. 10 - Prob. 12MCTCh. 10 - Prob. 13MCTCh. 10 - Prob. 14MCTCh. 10 - Prob. 15MCTCh. 10 - Prob. 16MCTCh. 10 - Prob. 17MCTCh. 10 - Prob. 18MCTCh. 10 - Prob. 19MCTCh. 10 - Prob. 20MCTCh. 10 - Prob. 1RECh. 10 - Prob. 2RECh. 10 - Prob. 3RECh. 10 - Prob. 4RECh. 10 - Prob. 5RECh. 10 - Prob. 6RECh. 10 - Prob. 7RECh. 10 - Prob. 8RECh. 10 - Prob. 9RECh. 10 - Prob. 10RECh. 10 - Prob. 11RECh. 10 - Prob. 12RECh. 10 - Prob. 13RECh. 10 - Prob. 14RECh. 10 - Prob. 15RECh. 10 - Prob. 16RECh. 10 - Prob. 17RECh. 10 - Prob. 18RECh. 10 - Prob. 19RECh. 10 - Prob. 20RECh. 10 - Prob. 21RECh. 10 - Prob. 22RECh. 10 - Prob. 23RECh. 10 - Prob. 24RECh. 10 - Prob. 25RECh. 10 - Prob. 26RECh. 10 - Prob. 27RECh. 10 - Prob. 28RECh. 10 - Prob. 29RECh. 10 - Prob. 30RECh. 10 - Prob. 31RECh. 10 - Prob. 32RECh. 10 - Prob. 33RECh. 10 - Prob. 34RECh. 10 - Prob. 35RECh. 10 - Prob. 36RECh. 10 - Prob. 37RECh. 10 - Prob. 38RECh. 10 - Prob. 39RECh. 10 - Prob. 40RECh. 10 - Prob. 41RECh. 10 - Prob. 42RECh. 10 - Prob. 43RECh. 10 - Prob. 44RECh. 10 - Prob. 45RECh. 10 - Prob. 46RECh. 10 - Prob. 47RECh. 10 - Prob. 48RECh. 10 - Prob. 49RECh. 10 - Prob. 50RECh. 10 - Prob. 51RECh. 10 - Prob. 52RECh. 10 - Prob. 53RECh. 10 - Prob. 54RECh. 10 - Prob. 55RECh. 10 - Prob. 56RECh. 10 - Prob. 57RECh. 10 - Prob. 58RECh. 10 - Prob. 59RECh. 10 - Prob. 60RECh. 10 - Prob. 61RECh. 10 - Prob. 62RECh. 10 - Prob. 63RECh. 10 - Indicate the equation of the axis of symmetry, the...Ch. 10 - Prob. 65RECh. 10 - Prob. 66RECh. 10 - Prob. 67RECh. 10 - Prob. 68RECh. 10 - Prob. 69RECh. 10 - Prob. 70RECh. 10 - Prob. 71RECh. 10 - Prob. 72RECh. 10 - Prob. 73RECh. 10 - Prob. 74RECh. 10 - Prob. 75RECh. 10 - Prob. 76RECh. 10 - Prob. 77RECh. 10 - Prob. 78RECh. 10 - Prob. 79RECh. 10 - Prob. 80RECh. 10 - Prob. 81RECh. 10 - Prob. 82RECh. 10 - Prob. 83RECh. 10 - Prob. 84RECh. 10 - Prob. 85RECh. 10 - Prob. 86RECh. 10 - Prob. 87RECh. 10 - Prob. 88RECh. 10 - Prob. 89RECh. 10 - Prob. 90RECh. 10 - Prob. 91RECh. 10 - Prob. 92RECh. 10 - Prob. 93RECh. 10 - Prob. 94RECh. 10 - Prob. 95RECh. 10 - Prob. 96RECh. 10 - Prob. 97RECh. 10 - Prob. 98RECh. 10 - Prob. 1PTCh. 10 - Prob. 2PTCh. 10 - Prob. 3PTCh. 10 - Prob. 4PTCh. 10 - Prob. 5PTCh. 10 - Prob. 6PTCh. 10 - Prob. 7PTCh. 10 - Prob. 8PTCh. 10 - Prob. 9PTCh. 10 - Prob. 10PTCh. 10 - Prob. 11PTCh. 10 - Prob. 12PTCh. 10 - Prob. 13PTCh. 10 - Prob. 14PTCh. 10 - Prob. 15PTCh. 10 - Prob. 16PTCh. 10 - Prob. 17PTCh. 10 - Prob. 18PTCh. 10 - Prob. 19PTCh. 10 - Prob. 20PTCh. 10 - Prob. 21PTCh. 10 - Prob. 22PTCh. 10 - Prob. 23PTCh. 10 - Prob. 24PTCh. 10 - Prob. 25PTCh. 10 - Prob. 1CRTCh. 10 - Prob. 2CRTCh. 10 - Prob. 3CRTCh. 10 - Prob. 4CRTCh. 10 - Prob. 5CRTCh. 10 - Prob. 6CRTCh. 10 - Prob. 7CRTCh. 10 - Prob. 8CRTCh. 10 - Prob. 9CRTCh. 10 - Prob. 10CRTCh. 10 - Prob. 11CRTCh. 10 - Prob. 12CRTCh. 10 - Prob. 13CRTCh. 10 - Prob. 14CRTCh. 10 - Prob. 15CRTCh. 10 - Prob. 16CRTCh. 10 - Prob. 17CRTCh. 10 - Prob. 18CRTCh. 10 - Prob. 19CRTCh. 10 - Prob. 20CRT

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