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 26E
To determine

Solve the equations.

Expert Solution

Answer to Problem 26E

  x=112

Explanation of Solution

Given information:

  4x1+2x+1=35x21

Formula used:

Transposition of terms.

  (x+y)(xy)=x2y2

  4x1+2x+1=35x21

Calculation:

Cross multiply in LHS to simplify

  4(x+1)+2(x1)(x1)(x+1)=35x21

Applying (x+y)(xy)=x2y2

  4x+4+2x2x21=35x216x+2x21=35x21

Cancelling 1x21 from both side of equations.

  6x+2=356x=33x=336x=112

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