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Algebra of Derivatives

Evaluate 2x...

Question

Evaluate $(2 x)^{2} + 5 x$ =

A

x^{2} + x

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B

x^{2} - 5 x

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C

x^{2} + 5 x

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D

4 x^{2} + 5 x

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Solution

The correct option is D $4 x^{2} + 5 x$
The correct answer is,
$(2 x)^{2} + 5 x = 4 x^{2} + 5 x$

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