Algebra Examples

$36 \div 2 - (81 \div 3^{2})$

Step 1

Simplify each term.

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Step 1.1

Divide $36$ by $2$ .

$18 - (81 \div 3^{2})$

Step 1.2

Rewrite the division as a fraction.

$18 - \frac{81}{3^{2}}$

Step 1.3

Raise $3$ to the power of $2$ .

$18 - \frac{81}{9}$

Step 1.4

Divide $81$ by $9$ .

$18 - 1 \cdot 9$

Step 1.5

Multiply $- 1$ by $9$ .

$18 - 9$

$18 - 9$

Step 2

Subtract $9$ from $18$ .

$9$

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