Answer
$$-40x+20y^2. $$
Work Step by Step
By multiplying each term of the polynomial by the monomial, we have
$$-5(8x-4y^2)=-5(8x)-5(-4y^2)=-40x+20y^2. $$
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: 4
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