Question #149969
f(x)=2x^4+x^3-3x+2, then f ''(x)=
a)31
b)21
c)20
d)30
1
Expert's answer
2020-12-10T20:09:44-0500
f(x)=8x3+3x23f'(x)=8x^3+3x^2-3

f(x)=24x2+6xf''(x)=24x^2+6x

f(1)=24(1)2+6(1)=30f''(1)=24(1)^2+6(1)=30


d)30



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