Answer
$-4x^{2}-9x-18$
Work Step by Step
We are given that $P(x)=3x+3$ and $Q(x)=4x^{2}-6x+3$.
$-5[P(x)]-Q(x)=-5(3x+3)-(4x^{2}-6x+3)=(-15x-15)+(-4x^{2}+6x-3)$
Combine like terms.
$-4x^{2}+(-15x+6x)+(-15-3)=-4x^{2}-9x-18$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set - Page 281: 116
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