Calculus Examples

$\int 9 x d x$

Step 1

Since $9$ is constant with respect to $x$ , move $9$ out of the integral.

$9 \int x d x$

Step 2

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

$9 (\frac{1}{2} x^{2} + C)$

Step 3

Simplify the answer.

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Step 3.1

Rewrite $9 (\frac{1}{2} x^{2} + C)$ as $9 (\frac{1}{2}) x^{2} + C$ .

$9 (\frac{1}{2}) x^{2} + C$

Step 3.2

Combine $9$ and $\frac{1}{2}$ .

$\frac{9}{2} x^{2} + C$