#### Answer

-261

#### Work Step by Step

We are given that $a=-3$, $b=64$, and $c=6$.
Therefore, $-3a^{4}-3c=-3(-3)^{4}-3(6)=-3(81)-18=-243-18=-261$

Published by
Pearson

ISBN 10:
0321969359

ISBN 13:
978-0-32196-935-4

-261

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