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, Problem 69RE
To determine

To find the real solutions of equation x29x+14=0 .

Expert Solution

Answer to Problem 69RE

The solution is x=7,2 .

Explanation of Solution

Given information:

  x29x+14=0

Formula used:

Quadratic Formula:- x=b±b24ac2a .

Calculations:

  a=1b=9c=14

  x=(9)±(9)24(1)(14)2(1)

  x=9±81562

  x=9±252

  x=9±52

  x=9+52=142=7 and x=952=42=2

The solution of the equation is x=2,7 .

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