Answer
$18x^{3}-30x^{2}-15x+6$
Work Step by Step
$(6x^{2}+2x-1)(3x-6)$
Multiplying vertically,
$-6(6x^{2}+2x-1)+3x(6x^{2}+2x-1)$
$=-36x^{2}-12x+6+18x^{3}+6x^{2}-3x$
Combine like terms.
$=18x^{3}-36x^{2}+6x^{2}-3x-12x+6$
$=18x^{3}-30x^{2}-15x+6$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.4 - Multiplying Polynomials - Exercise Set - Page 289: 72
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