Calculus Examples

$\int {(x^{2} + 5)}^{3} d x$

Step 1

Expand ${(x^{2} + 5)}^{3}$ .

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Step 1.1

Use the Binomial Theorem.

$\int {(x^{2})}^{3} + 3 {(x^{2})}^{2} \cdot 5 + 3 x^{2} \cdot 5^{2} + 5^{3} d x$

Step 1.2

Rewrite the exponentiation as a product.

$\int x^{2} {(x^{2})}^{2} + 3 {(x^{2})}^{2} \cdot 5 + 3 x^{2} \cdot 5^{2} + 5^{3} d x$

Step 1.3

Rewrite the exponentiation as a product.

$\int x^{2} (x^{2} x^{2}) + 3 {(x^{2})}^{2} \cdot 5 + 3 x^{2} \cdot 5^{2} + 5^{3} d x$

Step 1.4

Rewrite the exponentiation as a product.

$\int x^{2} (x^{2} x^{2}) + 3 (x^{2} x^{2}) \cdot 5 + 3 x^{2} \cdot 5^{2} + 5^{3} d x$

Step 1.5

Rewrite the exponentiation as a product.

$\int x^{2} (x^{2} x^{2}) + 3 (x^{2} x^{2}) \cdot 5 + 3 x^{2} \cdot (5 \cdot 5) + 5^{3} d x$

Step 1.6

Rewrite the exponentiation as a product.

$\int x^{2} (x^{2} x^{2}) + 3 (x^{2} x^{2}) \cdot 5 + 3 x^{2} \cdot (5 \cdot 5) + 5 \cdot 5^{2} d x$

Step 1.7

Rewrite the exponentiation as a product.

$\int x^{2} (x^{2} x^{2}) + 3 (x^{2} x^{2}) \cdot 5 + 3 x^{2} \cdot (5 \cdot 5) + 5 \cdot (5 \cdot 5) d x$

Step 1.8

Move $x^{2}$ .

$\int x^{2} x^{2} x^{2} + 3 x^{2} \cdot 5 x^{2} + 3 x^{2} \cdot (5 \cdot 5) + 5 \cdot (5 \cdot 5) d x$

Step 1.9

Move $x^{2}$ .

$\int x^{2} x^{2} x^{2} + 3 \cdot 5 x^{2} x^{2} + 3 x^{2} \cdot (5 \cdot 5) + 5 \cdot (5 \cdot 5) d x$

Step 1.10

Move $x^{2}$ .

$\int x^{2} x^{2} x^{2} + 3 \cdot 5 x^{2} x^{2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot (5 \cdot 5) d x$

Step 1.11

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\int x^{2 + 2} x^{2} + 3 \cdot 5 x^{2} x^{2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.12

Add $2$ and $2$ .

$\int x^{4} x^{2} + 3 \cdot 5 x^{2} x^{2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.13

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\int x^{4 + 2} + 3 \cdot 5 x^{2} x^{2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.14

Add $4$ and $2$ .

$\int x^{6} + 3 \cdot 5 x^{2} x^{2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.15

Multiply $3$ by $5$ .

$\int x^{6} + 15 x^{2} x^{2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.16

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\int x^{6} + 15 x^{2 + 2} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.17

Add $2$ and $2$ .

$\int x^{6} + 15 x^{4} + 3 \cdot 5 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.18

Multiply $3$ by $5$ .

$\int x^{6} + 15 x^{4} + 15 \cdot 5 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.19

Multiply $15$ by $5$ .

$\int x^{6} + 15 x^{4} + 75 x^{2} + 5 \cdot 5 \cdot 5 d x$

Step 1.20

Multiply $5$ by $5$ .

$\int x^{6} + 15 x^{4} + 75 x^{2} + 25 \cdot 5 d x$

Step 1.21

Multiply $25$ by $5$ .

$\int x^{6} + 15 x^{4} + 75 x^{2} + 125 d x$

$\int x^{6} + 15 x^{4} + 75 x^{2} + 125 d x$

Step 2

Split the single integral into multiple integrals.

$\int x^{6} d x + \int 15 x^{4} d x + \int 75 x^{2} d x + \int 125 d x$

Step 3

By the Power Rule, the integral of $x^{6}$ with respect to $x$ is $\frac{1}{7} x^{7}$ .

$\frac{1}{7} x^{7} + C + \int 15 x^{4} d x + \int 75 x^{2} d x + \int 125 d x$

Step 4

Since $15$ is constant with respect to $x$ , move $15$ out of the integral.

$\frac{1}{7} x^{7} + C + 15 \int x^{4} d x + \int 75 x^{2} d x + \int 125 d x$

Step 5

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

$\frac{1}{7} x^{7} + C + 15 (\frac{1}{5} x^{5} + C) + \int 75 x^{2} d x + \int 125 d x$

Step 6

Since $75$ is constant with respect to $x$ , move $75$ out of the integral.

$\frac{1}{7} x^{7} + C + 15 (\frac{1}{5} x^{5} + C) + 75 \int x^{2} d x + \int 125 d x$

Step 7

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

$\frac{1}{7} x^{7} + C + 15 (\frac{1}{5} x^{5} + C) + 75 (\frac{1}{3} x^{3} + C) + \int 125 d x$

Step 8

Apply the constant rule.

$\frac{1}{7} x^{7} + C + 15 (\frac{1}{5} x^{5} + C) + 75 (\frac{1}{3} x^{3} + C) + 125 x + C$

Step 9

Simplify.

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Step 9.1

Simplify.

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Step 9.1.1

Combine $\frac{1}{5}$ and $x^{5}$ .

$\frac{1}{7} x^{7} + C + 15 (\frac{x^{5}}{5} + C) + 75 (\frac{1}{3} x^{3} + C) + 125 x + C$

Step 9.1.2

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

$\frac{1}{7} x^{7} + C + 15 (\frac{x^{5}}{5} + C) + 75 (\frac{x^{3}}{3} + C) + 125 x + C$

$\frac{1}{7} x^{7} + C + 15 (\frac{x^{5}}{5} + C) + 75 (\frac{x^{3}}{3} + C) + 125 x + C$

Step 9.2

Simplify.

$\frac{x^{7}}{7} + 3 x^{5} + 25 x^{3} + 125 x + C$

Step 9.3

Reorder terms.

$\frac{1}{7} x^{7} + 3 x^{5} + 25 x^{3} + 125 x + C$

$\frac{1}{7} x^{7} + 3 x^{5} + 25 x^{3} + 125 x + C$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$