Basic Math Examples

$- 5 a (a + 4)$

Step 1

Apply the distributive property.

$- 5 a \cdot a - 5 a \cdot 4$

Step 2

Multiply $a$ by $a$ by adding the exponents.

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Step 2.1

Move $a$ .

$- 5 (a \cdot a) - 5 a \cdot 4$

Step 2.2

Multiply $a$ by $a$ .

$- 5 a^{2} - 5 a \cdot 4$

$- 5 a^{2} - 5 a \cdot 4$

Step 3

Multiply $4$ by $- 5$ .

$- 5 a^{2} - 20 a$

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