Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.4 - Polynomials - Exercise Set: 53

Answer

$8x^3+36x^2+54x+27$

Work Step by Step

RECALL: $(a+b)^3=a^3++3a^2b+ 3ab^2+b^3$ Use the formula above with $a=2x$ and $b=3$ to obtain: $=(2x)^3+3(2x)^2(3)+3(2x)(3^2)+3^3 \\=8x^3+9(4x^2)+6x(9)+27 \\=8x^3+36x^2+54x+27$
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