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

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

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integral of (2x^3+x+3)

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

\frac{x ^{4}}{2} + \frac{x ^{2}}{2} + 3 x + C

Solution steps

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

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

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

\int 3 d x = 3 x

= \frac{x ^{4}}{2} + \frac{x ^{2}}{2} + 3 x

Add a constant to the solution

= \frac{x ^{4}}{2} + \frac{x ^{2}}{2} + 3 x + C

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