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: $$(x^2-y^2)z=((-3)^2-4^2)6=(9-16)6\\ =-7*6=-42.$$
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