Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Section 7.3 - Adding and Subtracting Rational Expressions with the Same Denominator and Least Common Denominator - Exercise Set: 34

Answer

LCD=3$x^{2}$(x+5)(x-5)

Work Step by Step

$\frac{5}{x^{2}-25}$, $\frac{x+9}{3x^{3}-15x^{2}}$ $x^{2}$-25=$x^{2}$-$5^{2}$=(x+5)(x-5) 3$x^{3}$-15$x^{2}$=3$x^{2}$(x-5) LCD=3$x^{2}$(x+5)(x-5)
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