Basic Math Examples

$9^{2} - 4 \cdot 7$

Step 1

Simplify each term.

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Step 1.1

Raise $9$ to the power of $2$ .

$81 - 4 \cdot 7$

Step 1.2

Multiply $- 4$ by $7$ .

$81 - 28$

$81 - 28$

Step 2

Subtract $28$ from $81$ .

$53$

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