Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Appendix A - Review - A.3 Polynomials - A.3 Assess Your Understanding - Page A31: 135

Answer

$5(x+3)(x-2)^2(x+1)$

Work Step by Step

The given expression is $2(x+3)(x-2)^3+(x+3)^2\cdot 3(x-2)^2$. Factor out $(x+3)(x-2)^2$. $=(x+3)(x-2)^2[2(x-2)+3(x+3)]$ Use distributive property. $=(x+3)(x-2)^2[2x-4+3x+9]$ Add like terms. $=(x+3)(x-2)^2(5x+5)$ Factor out $5$. $=5(x+3)(x-2)^2(x+1)$ Hence, the completely factored form of the given expression is $5(x+3)(x-2)^2(x+1)$.
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