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Find the Derivative f(x)=x(4x−4)+20x−20f(x)=\sqrt{x}(4 x-4)+20 x-20 A) f′(x)=2.67x1/2−4x−1/2+20f^{\prime}(x)=2.67 x^{1 / 2}-4 x^{-1 / 2}+20

Question 142

Multiple Choice

Find the derivative.
- f(x) =x(4x−4) +20x−20f(x) =\sqrt{x}(4 x-4) +20 x-20


A) f′(x) =2.67x1/2−4x−1/2+20f^{\prime}(x) =2.67 x^{1 / 2}-4 x^{-1 / 2}+20
B) f′(x) =2.67x1/2−2x−1/2+20f^{\prime}(x) =2.67 x^{1 / 2}-2 x^{-1 / 2}+20
C) f′(x) =6x1/2−4x−1/2+20f^{\prime}(x) =6 x^{1 / 2}-4 x^{-1 / 2}+20
D) f′(x) =6x1/2−2x−1/2+20f^{\prime}(x) =6 x^{1 / 2}-2 x^{-1 / 2}+20

Correct Answer:

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