Calculus Examples

$\int (x^{4} - 3 x^{\frac{5}{2}} + \sqrt{x} + 2) d x$

Step 1

Remove parentheses.

$\int x^{4} - 3 x^{\frac{5}{2}} + \sqrt{x} + 2 d x$

Step 2

Split the single integral into multiple integrals.

$\int x^{4} d x + \int - 3 x^{\frac{5}{2}} d x + \int \sqrt{x} d x + \int 2 d x$

Step 3

By the Power Rule, the integral of $x^{4}$ with respect to $x$ is $\frac{1}{5} x^{5}$ .

$\frac{1}{5} x^{5} + C + \int - 3 x^{\frac{5}{2}} d x + \int \sqrt{x} d x + \int 2 d x$

Step 4

Since $- 3$ is constant with respect to $x$ , move $- 3$ out of the integral.

$\frac{1}{5} x^{5} + C - 3 \int x^{\frac{5}{2}} d x + \int \sqrt{x} d x + \int 2 d x$

Step 5

By the Power Rule, the integral of $x^{\frac{5}{2}}$ with respect to $x$ is $\frac{2}{7} x^{\frac{7}{2}}$ .

$\frac{1}{5} x^{5} + C - 3 (\frac{2}{7} x^{\frac{7}{2}} + C) + \int \sqrt{x} d x + \int 2 d x$

Step 6

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{x}$ as $x^{\frac{1}{2}}$ .

$\frac{1}{5} x^{5} + C - 3 (\frac{2}{7} x^{\frac{7}{2}} + C) + \int x^{\frac{1}{2}} d x + \int 2 d x$

Step 7

By the Power Rule, the integral of $x^{\frac{1}{2}}$ with respect to $x$ is $\frac{2}{3} x^{\frac{3}{2}}$ .

$\frac{1}{5} x^{5} + C - 3 (\frac{2}{7} x^{\frac{7}{2}} + C) + \frac{2}{3} x^{\frac{3}{2}} + C + \int 2 d x$

Step 8

Combine $\frac{2}{7}$ and $x^{\frac{7}{2}}$ .

$\frac{1}{5} x^{5} + C - 3 (\frac{2 x^{\frac{7}{2}}}{7} + C) + \frac{2}{3} x^{\frac{3}{2}} + C + \int 2 d x$

Step 9

Apply the constant rule.

$\frac{1}{5} x^{5} + C - 3 (\frac{2 x^{\frac{7}{2}}}{7} + C) + \frac{2}{3} x^{\frac{3}{2}} + C + 2 x + C$

Step 10

Simplify.

$\frac{x^{5}}{5} - \frac{6 x^{\frac{7}{2}}}{7} + \frac{2 x^{\frac{3}{2}}}{3} + 2 x + C$

Step 11

Reorder terms.

$\frac{1}{5} x^{5} - \frac{6}{7} x^{\frac{7}{2}} + \frac{2}{3} x^{\frac{3}{2}} + 2 x + C$