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Popular >

integral of x^2(3-x)

Solution

\int x^{2} (3 - x) d x

Solution

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

Solution steps

\int x^{2} (3 - x) d x

Expand

x^{2} (3 - x) : 3 x^{2} - x^{3}

= \int 3 x^{2} - x^{3} 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 3 x^{2} d x - \int x^{3} d x

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

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

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

Add a constant to the solution

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

Popular Examples

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\int \frac{cos ( x )}{9 + sin ( x )} d x

integral of (-8)/(xsqrt(x+1))

\int \frac{- 8}{x x + 1} d x

integral of (cos(pi)x)

\int (cos (π) x) d x

Frequently Asked Questions (FAQ)

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