   Chapter A.5, Problem 3E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

Which equations are quadratic? a) 2 x 2 − 5 x + 3 = 0 d) 1 2 x 2 − 1 4 x − 1 8 = 0 b) x 2 = x 2 + 4 e) 2 x − 1 = 3 c) x 2 = 4 f) ( x + 1 ) ( x − 1 ) = 15

To determine

(a)

To find:

To find the following equation 2x25x+3=0 are quadratic.

Explanation

Consider the following equation,

2x25x+3=0.

The general form of the quadratic equation is given below,

ax2+bx+c=0

Where a is the number multiplied by x2, b is the number multiplied by x, and c is the constant term. Highest power of quadratic equation is 2.

Compare the given equation with general equation to get the following,

ax2+bx+c

To determine

(b)

To find:

To find the following equation x2=x2+4 are quadratic.

To determine

(c)

To find:

To find the following equation x2=4 are quadratic.

To determine

(d)

To find:

To find the following equation 12x214x18=0 are quadratic.

To determine

(e)

To find:

To find the following equation 2x1=3 are quadratic.

To determine

(f)

To find:

To find the following equation (x+1)(x1)=15 are quadratic.

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