Pre-Algebra Examples

$3 (5 x^{2} + 6 x - 1 - 7 x^{2})$

Step 1

Subtract $7 x^{2}$ from $5 x^{2}$ .

$3 (- 2 x^{2} + 6 x - 1)$

Step 2

Apply the distributive property.

$3 (- 2 x^{2}) + 3 (6 x) + 3 \cdot - 1$

Step 3

Simplify.

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Step 3.1

Multiply $- 2$ by $3$ .

$- 6 x^{2} + 3 (6 x) + 3 \cdot - 1$

Step 3.2

Multiply $6$ by $3$ .

$- 6 x^{2} + 18 x + 3 \cdot - 1$

Step 3.3

Multiply $3$ by $- 1$ .

$- 6 x^{2} + 18 x - 3$

$- 6 x^{2} + 18 x - 3$

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