Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 6 - Section 6.2 - Adding and Subtracting Rational Expressions - Exercise Set - Page 354: 47

Answer

$\frac{x^{2}+4x+2}{(x-1)(x-7)(2x+5)}$

Work Step by Step

Original Equation $\frac{x}{x^{2}-8x+7}$ - $\frac{x+2}{2x^{2}-9x-35}$ Factor Denominator $\frac{x}{(x-1)(x-7)}$ - $\frac{x+2}{(x-7)(2x+5)}$ Find LCD: (x-7)(2x+5)(x-1) Add numerators $\frac{x(2x+5)-(x+2)(x-1)}{(x-1)(x-7)(2x+5)}$ Simplify Answer: $\frac{x^{2}+4x+2}{(x-1)(x-7)(2x+5)}$
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