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 1.9, Problem 41E
To determine

Solve the equation both graphically and algebraically.

Expert Solution

Answer to Problem 41E

  x=±254+5

  Precalculus: Mathematics for Calculus - 6th Edition, Chapter 1.9, Problem 41E , additional homework tip  1

Explanation of Solution

Given information:

  (x5)480=0

Formula used:

Transposition of terms.

Algebraically:

  (x5)480=0(x5)4=80

Taking fourth root both the sides

  (x5)=804x5=254x=±254+5

Graphically:

Making Graph of (x5)480=0 and finding approximate value of x

  Precalculus: Mathematics for Calculus - 6th Edition, Chapter 1.9, Problem 41E , additional homework tip  2

Graph intersect x-axis approximately at 2 and 8.

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