3.32: Differentiate ln of a cubic and integrate

0606/23/M/J/23 — Question 3 · 4 marks

(a)
Differentiate ln(x3+3x2)\ln(x^{3} + 3x^{2}) with respect to xx, simplifying your answer.
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(b)
Hence find 3x2+6xx3+3x2dx\displaystyle\int\dfrac{3x^{2} + 6x}{x^{3} + 3x^{2}}\,\mathrm{d}x.
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