Basic Math Examples

$21 {(3)}^{2} - 26 \cdot 3 - 15$

Step 1

Simplify each term.

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Step 1.1

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

$21 \cdot 9 - 26 \cdot 3 - 15$

Step 1.2

Multiply $21$ by $9$ .

$189 - 26 \cdot 3 - 15$

Step 1.3

Multiply $- 26$ by $3$ .

$189 - 78 - 15$

$189 - 78 - 15$

Step 2

Simplify by subtracting numbers.

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Step 2.1

Subtract $78$ from $189$ .

$111 - 15$

Step 2.2

Subtract $15$ from $111$ .

$96$

$96$

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