Basic Math Examples

$5 (a - 4 (4 - 5 a))$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

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

Step 1.2

Multiply $- 4$ by $4$ .

$5 (a - 16 - 4 (- 5 a))$

Step 1.3

Multiply $- 5$ by $- 4$ .

$5 (a - 16 + 20 a)$

$5 (a - 16 + 20 a)$

Step 2

Simplify terms.

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Step 2.1

Add $a$ and $20 a$ .

$5 (21 a - 16)$

Step 2.2

Apply the distributive property.

$5 (21 a) + 5 \cdot - 16$

Step 2.3

Multiply.

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Step 2.3.1

Multiply $21$ by $5$ .

$105 a + 5 \cdot - 16$

Step 2.3.2

Multiply $5$ by $- 16$ .

$105 a - 80$

$105 a - 80$

$105 a - 80$

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