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Popular Calculus >

integral of 3x+x^2

Solution

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

Solution

\frac{3 x ^{2}}{2} + \frac{x ^{3}}{3} + C

Solution steps

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

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

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

= \frac{3 x ^{2}}{2} + \frac{x ^{3}}{3}

Add a constant to the solution

= \frac{3 x ^{2}}{2} + \frac{x ^{3}}{3} + C

Graph

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Frequently Asked Questions (FAQ)

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