2019
Mathematics
JAMB
if f(x)=3x3+4x2+x - 8, what is the value of f(-2)?
A.
-24
B.
30
C.
-18
D.
-50
Correct Answer: -18
Explanation
f(x)=3x3+4x2+x - 8 f(−2)=3(−2)3 + 4(−2)2+(−2)−8 = −24+16−2−8 = -18
f(x)=3x3+4x2+x - 8 f(−2)=3(−2)3 + 4(−2)2+(−2)−8 = −24+16−2−8 = -18THIS WEEK's
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