What is the integral of x/(\sqrt[4]{x+9)} ?

The integral of x/(\sqrt[4]{x+9)} is 4/7 (x+9)^{7/4}-12(x+9)^{3/4}+C

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integral of x/(\sqrt[4]{x+9)}

\frac{4}{7} (x + 9)^{\frac{7}{4}} - 12 (x + 9)^{\frac{3}{4}} + C

Solution steps

Apply u-substitution

Expand

Apply the Sum Rule:

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

\int u^{\frac{3}{4}} d u = \frac{4}{7} u^{\frac{7}{4}}

= \frac{4}{7} u^{\frac{7}{4}} - 12 u^{\frac{3}{4}}

Substitute back

u = x + 9

= \frac{4}{7} (x + 9)^{\frac{7}{4}} - 12 (x + 9)^{\frac{3}{4}}

Add a constant to the solution

= \frac{4}{7} (x + 9)^{\frac{7}{4}} - 12 (x + 9)^{\frac{3}{4}} + C

\frac{d}{d x} (x^{3} + 2 x^{2} - x - 1)

\int_{1}^{2} \frac{x ^{2} + 1}{x ^{2}} d x

sin (t + 1)

\int_{0}^{4} x^{2} - 4 x d x

What is the integral of x/(\sqrt[4]{x+9)} ?
The integral of x/(\sqrt[4]{x+9)} is 4/7 (x+9)^{7/4}-12(x+9)^{3/4}+C