Algebrahard · Past Paper
If f(x) = x^3 - 3x^2 + 4x - 5, find the value of f(x) + f(-x).
A-6x^2 - 10
B2x^3 + 8x
C0
D-10
✓ Correct Answer: A — -6x^2 - 10
f(x) + f(-x) = (x^3-3x^2+4x-5) + (-x^3-3x^2-4x-5) = -6x^2 - 10.
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✓ Correct Answer: A — -6x^2 - 10
f(x) + f(-x) = (x^3-3x^2+4x-5) + (-x^3-3x^2-4x-5) = -6x^2 - 10.
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