Correct Answer: Option D

Explanation

y = (2x + 1)\(^3\)
\(\frac{dy}{dx}\) = 3(2x + 1)\(^{3-1}\) x 2
= 3(2x + 1)\(^2\)x 2
= 6(2x + 1)\(^2\)

There is an explanation video available below.

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