Pre-Algebra Examples

$- 21 (x - 7)$

Step 1

Apply the distributive property.

$- 21 x - 21 \cdot - 7$

Step 2

Multiply $- 21$ by $- 7$ .

$- 21 x + 147$

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