What is the integral of x-2sqrt(x) ?

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

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integral of x-2sqrt(x)

\int x - 2 x d x

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

Solution steps

\int x - 2 x 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 x d x - \int 2 x d x

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

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

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

Add a constant to the solution

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

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