Answer
$-42$
Work Step by Step
We are given: $x=-3$, $y=4$, $z=6$
We take into account the order of operations:
Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction
Thus, we have:
$$(x^2-y^2)z=((-3)^2-4^2)6=(9-16)6\\
=-7*6=-42.$$
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 5.1 - Fundamental Operations - Exercise - Page 214: 28
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