Question 7

If $q(x)=-40-2 x+2 x^{2}$, find $q(-4)$
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Answer

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Answer

So, the final answer is $\boxed{0}$.

Steps

Step 1 ：Let's substitute $x = -4$ into the equation $q(x) = -40 - 2x + 2x^{2}$.

Step 2 ：After substituting, we get $q(-4) = -40 - 2(-4) + 2(-4)^{2}$.

Step 3 ：Solving the equation, we get $q(-4) = 0$.

Step 4 ：So, the final answer is $\boxed{0}$.