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 74E
To determine

Find the real solutions of equation.

Expert Solution

Answer to Problem 74E

  x=2+3,x=23

Explanation of Solution

Given information:

  x24x+1=0

Formula used: -

  x=b±b24ac2a

  x24x+1=0

Now applying quadratic formula:

  x=b±b24ac2a In equation x24x+1=0

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

  x=(4)±(4)24(1)(1)2(1)x=4±1642x=4±232x=4±232

  x=2+3,x=23

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