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Popular Calculus >

integral of x^3+4x^2

Solution

\int x^{3} + 4 x^{2} d x

Solution

\frac{x ^{4}}{4} + \frac{4 x ^{3}}{3} + C

Solution steps

\int x^{3} + 4 x^{2} d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int x^{3} d x + \int 4 x^{2} d x

\int x^{3} d x = \frac{x ^{4}}{4}

\int 4 x^{2} d x = \frac{4 x ^{3}}{3}

= \frac{x ^{4}}{4} + \frac{4 x ^{3}}{3}

Add a constant to the solution

= \frac{x ^{4}}{4} + \frac{4 x ^{3}}{3} + C

Graph

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Frequently Asked Questions (FAQ)

What is the integral of x^3+4x^2 ?
The integral of x^3+4x^2 is (x^4)/4+(4x^3)/3+C