Answer
Answer:
$32x^{3}-32x^{2}-26x+20$
Work Step by Step
To do:
$(4x-5)(8x^{2}+2x-4)$
=$4x(8x^{2}+2x-4)-5(8x^{2}+2x-4)$
=$32x^{3}+8x^{2}-16x-40x^{2}-10x+20$
=$32x^{3}-32x^{2}-26x+20$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.5 - Multiplying Polynomials - Exercise Set - Page 379: 56
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