Pre-Algebra Examples

$- 2 x (x - 5)$

Step 1

Apply the distributive property.

$- 2 x \cdot x - 2 x \cdot - 5$

Step 2

Multiply $x$ by $x$ by adding the exponents.

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Step 2.1

Move $x$ .

$- 2 (x \cdot x) - 2 x \cdot - 5$

Step 2.2

Multiply $x$ by $x$ .

$- 2 x^{2} - 2 x \cdot - 5$

$- 2 x^{2} - 2 x \cdot - 5$

Step 3

Multiply $- 5$ by $- 2$ .

$- 2 x^{2} + 10 x$

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