# The equation of the Adding or substracting rational expression ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071 ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 1.4, Problem 47E
To determine

## To find: The equation of the Adding or substracting rational expression

Expert Solution

u2+3u+1u+1

### Explanation of Solution

Given:

The equation is

u+1+uu+1

Concept used:

AC+BC=A+BC

Use the least common denominator (L.C.D)

The product of the distinct factors , using the highest power that appears in any of the factors

Calculation:

Adding or substracting rational expression is

AC+BC=A+BC................(1)

The equation is

u+1+uu+1u(u+1)+u+1+uu+1u2+u+2u+1u+1u2+3u+1u+1

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