Ashley C.
asked • 02/04/23algebra hw help
Suppose f(x)= -2x2 + 2x - 2. Compute the following:
A. f(-4) + f(1) =
B. f(-4) - f(1) =
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1 Expert Answer
Sean C. answered • 02/04/23
Tutor
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A. f(-4) + f(1) = -2(-4)^2 + 2(-4) - 2 + -2(1)^2 + 2(1) - 2 = -2(16) + 2(-4) - 2 + -2(1) + 2(1) - 2 = -32 + -8 - 2 - 2 + 2 - 2 = -32 - 8 - 4 = -44.
B. f(-4) - f(1) = -2(-4)^2 + 2(-4) - 2 - (-2(1)^2 + 2(1) - 2) = -2(16) + 2(-4) - 2 - (-2 + 2 - 2) = -32 + -8 - 2 - (-2) = -32 - 8 - 2 + 2 = -32 - 8 + 0 = -40.
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