BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.5, Problem 72E
To determine

Find the real solutions of equation.

Expert Solution

Answer to Problem 72E

  x=2±258,x=2258

Explanation of Solution

Given information:

  2y2y12=0

Formula used: -

  x=b±b24ac2a

  2y2y12=0

Now taking L.C.M of 1, 1, and 2 to convert the above equation in integer form.

  4y22y1=0

Now applying quadratic formula:

  x=b±b24ac2a In equation 4y22y1=0

Here a=4,b=2,c=1

  x=(2)±(2)24(4)(1)2(4)x=2±4+168x=2±258x=2±258,x=2258

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