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Let f(x)=4x3exf ( x ) = 4 x ^ { 3 } e ^ { x }

Question 46

Multiple Choice

Let f(x) =4x3exf ( x ) = 4 x ^ { 3 } e ^ { x } Then f(x) f ^ { \prime } ( x ) is


A) 12x2ex12 x ^ { 2 } e ^ { x }
B) 12x2+ex12 x ^ { 2 } + e ^ { x }
C) 4x2(x+3) 4 x ^ { 2 } ( x + 3 )
D) 4x2ex(x+3) 4 x ^ { 2 } e ^ { x } ( x + 3 )
E) 4x3ex14 x ^ { 3 } e ^ { x - 1 }

Correct Answer:

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