College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Summary, Review, and Test - Review Exercises - Page 91: 81

Answer

$125x^3-150x^2+60x-8$

Work Step by Step

FOIL the terms in the parentheses by using the special product formula. $(A+B)^3=A^3+3A^2B+3AB^2+B^3$ Then combine like terms to simplify. $(5x-2)^3$ $(5x-2)(5x-2)(5x-2)$ $(5x)^3-3*(5x)^2*2+3*5x*2^2-2^3$ $125x^3-6*25x^2+3*5x*4-8$ $125x^3-150x^2+60x-8$
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