If f(x) = 3x3 – 5x2 + 7, then f(-2) + f(2) is:
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Answer:
-26
Step-by-step explanation:
f(x)=3x³-5x²+7
f(-2)=3(-2)³-5(-2)²+7
=3(-2³)-5×2²+7
=-3×8-5×4+7
=-24-20+7
=(-37)
f(2)=3(2)³-5(2)²+7
=3×8-5×4+7
=24-20+7
=11
f(-2)-f(2)=(-37)-11
= (-26)
Therefore,f(-2)-f(2)=-26
Hope it helps
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