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Question

\[\int \left( 3x + 4 \right)^2 dx\]
Sum
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Solution

\[\int \left( 3x + 4 \right)^2 dx\]
\[ = \int \left( 9 x^2 + 2 \times 3x \times 4 + 16 \right)dx\]
`= 9 ∫    x^2dx + 24  ∫  x dx + 16 ∫   dx`
\[ = 9\left[ \frac{x^3}{3} \right] + 24\left[ \frac{x^2}{2} \right] + 16x + C\]
\[ = 3 x^3 + 12 x^2 + 16x + C\]

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Chapter 19: Indefinite Integrals - Exercise 19.02 [Page 15]

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RD Sharma Mathematics [English] Class 12
Chapter 19 Indefinite Integrals
Exercise 19.02 | Q 18 | Page 15

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