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Find this a bit complicated. Please explain and show work with steps.

Suppose f(x)=–x²–4x+4. Compute the following:

A. f(–5)+f(5)=

B. f(–5)–f(5)=

1 Answer

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A. f(-5) = -(-5)^2-4(-5)+4 = -1

f(5) = -(5)^2-4(5)+4 = -41

-1 + -41 = -42

B. -1 - -41 = 40

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