What is the integral of (4x^3+5)sqrt(x^4+5x) ?

The integral of (4x^3+5)sqrt(x^4+5x) is 2/3 (x^4+5x)^{3/2}+C

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integral of (4x^3+5)sqrt(x^4+5x)

\int (4 x^{3} + 5) x^{4} + 5 x d x

\frac{2}{3} (x^{4} + 5 x)^{\frac{3}{2}} + C

Solution steps

\int (4 x^{3} + 5) x^{4} + 5 x d x

Apply u-substitution

= \int u d u

Apply the Power Rule

= \frac{2}{3} u^{\frac{3}{2}}

Substitute back

u = x^{4} + 5 x

= \frac{2}{3} (x^{4} + 5 x)^{\frac{3}{2}}

Add a constant to the solution

= \frac{2}{3} (x^{4} + 5 x)^{\frac{3}{2}} + C

What is the integral of (4x^3+5)sqrt(x^4+5x) ?
The integral of (4x^3+5)sqrt(x^4+5x) is 2/3 (x^4+5x)^{3/2}+C