Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 5 - Polynomials and Polynomial Functions - 5-2 Polynomials, Linear Factors, and Zeros - Practice and Problem-Solving Exercises: 8

Answer

$x^3-7x^2-18x=x(x-9)(x+2)$

Work Step by Step

Factor out the GCF $x$ to get $\\=x(x^2-7x-18)$. Factor the trinomial to get $\\=x(x-9)(x+2)$. Check by multiplying the factors: $=x(x^2+2x-9x-18) \\=x(x^2-7x-18) \\=x^3-7x^2-18x$.
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