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 73E
To determine

Find the real solutions of equation.

Expert Solution

Answer to Problem 73E

  x=12,x=92

Explanation of Solution

Given information:

  4x2+16x9=0

Formula used: -

  x=b±b24ac2a

  4x2+16x9=0

Now applying quadratic formula:

  x=b±b24ac2a In equation 4x2+16x9=0

Here a=4,b=16,c=9

  x=(16)±(16)24(4)(9)2(4)x=16±256+1448x=16±4008x=16±208

  x=16+208,x=16208x=12,x=92

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