Answer
$$-48x^3-30x^2+54x . $$
Work Step by Step
By multiplying each term of the polynomial by the monomial, and then adding the products, we have
$$-6x(8x^2+ 5x - 9)=-6x(8x^2)-6x( 5x)-6x( - 9)\\
=-48x^3-30x^2+54x . $$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Section 5.5 - Multiplication of Polynomials - Exercise - Page 225: 12
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