The derivatives of (2x + 1)(3x + 1) is
12x + 1
6x + 5
6x + 1
12x + 5
Correct answer is D
2x + 1 \(\frac{d(3x + 1)}{\mathrm d x}\) + (3x + 1) \(\frac{d(2x + 1)}{\mathrm d x}\) 2x + 1 (3) + (3x + 1) (2) 6x + 3 + 6x + 2 = 12x + 5
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