Calculus Examples

$\int 18 x + 5 d x$

Step 1

Split the single integral into multiple integrals.

$\int 18 x d x + \int 5 d x$

Step 2

Since $18$ is constant with respect to $x$ , move $18$ out of the integral.

$18 \int x d x + \int 5 d x$

Step 3

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

$18 (\frac{1}{2} x^{2} + C) + \int 5 d x$

Step 4

Apply the constant rule.

$18 (\frac{1}{2} x^{2} + C) + 5 x + C$

Step 5

Simplify.

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Step 5.1

Combine $\frac{1}{2}$ and $x^{2}$ .

$18 (\frac{x^{2}}{2} + C) + 5 x + C$

Step 5.2

Simplify.

$9 x^{2} + 5 x + C$