Calculus Examples

$f (x) = 4 x^{2} + 2 x^{\frac{1}{2}} + \sqrt[3]{x}$

Step 1

The function $F (x)$ can be found by finding the indefinite integral of the derivative $f (x)$ .

$F (x) = \int f (x) d x$

Step 2

Set up the integral to solve.

$F (x) = \int 4 x^{2} + 2 x^{\frac{1}{2}} + \sqrt[3]{x} d x$

Step 3

Split the single integral into multiple integrals.

$\int 4 x^{2} d x + \int 2 x^{\frac{1}{2}} d x + \int \sqrt[3]{x} d x$

Step 4

Since $4$ is constant with respect to $x$ , move $4$ out of the integral.

$4 \int x^{2} d x + \int 2 x^{\frac{1}{2}} d x + \int \sqrt[3]{x} d x$

Step 5

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

$4 (\frac{1}{3} x^{3} + C) + \int 2 x^{\frac{1}{2}} d x + \int \sqrt[3]{x} d x$

Step 6

Since $2$ is constant with respect to $x$ , move $2$ out of the integral.

$4 (\frac{1}{3} x^{3} + C) + 2 \int x^{\frac{1}{2}} d x + \int \sqrt[3]{x} d x$

Step 7

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

$4 (\frac{1}{3} x^{3} + C) + 2 (\frac{2}{3} x^{\frac{3}{2}} + C) + \int \sqrt[3]{x} d x$

Step 8

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt[3]{x}$ as $x^{\frac{1}{3}}$ .

$4 (\frac{1}{3} x^{3} + C) + 2 (\frac{2}{3} x^{\frac{3}{2}} + C) + \int x^{\frac{1}{3}} d x$

Step 9

By the Power Rule, the integral of $x^{\frac{1}{3}}$ with respect to $x$ is $\frac{3}{4} x^{\frac{4}{3}}$ .

$4 (\frac{1}{3} x^{3} + C) + 2 (\frac{2}{3} x^{\frac{3}{2}} + C) + \frac{3}{4} x^{\frac{4}{3}} + C$

Step 10

Simplify.

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Step 10.1

Simplify.

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Step 10.1.1

Combine $\frac{1}{3}$ and $x^{3}$ .

$4 (\frac{x^{3}}{3} + C) + 2 (\frac{2}{3} x^{\frac{3}{2}} + C) + \frac{3}{4} x^{\frac{4}{3}} + C$

Step 10.1.2

Combine $\frac{2}{3}$ and $x^{\frac{3}{2}}$ .

$4 (\frac{x^{3}}{3} + C) + 2 (\frac{2 x^{\frac{3}{2}}}{3} + C) + \frac{3}{4} x^{\frac{4}{3}} + C$

Step 10.2

Simplify.

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

Step 10.3

Reorder terms.

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

Step 11

The answer is the antiderivative of the function $f (x) = 4 x^{2} + 2 x^{\frac{1}{2}} + \sqrt[3]{x}$ .

$F (x) =$ $\frac{4}{3} x^{3} + \frac{4}{3} x^{\frac{3}{2}} + \frac{3}{4} x^{\frac{4}{3}} + C$