Pre-Algebra Examples

(- 3 x^{2} - x - 10) + (10 x^{2} + x - 10)

$(- 3 x^{2} - x - 10) + (10 x^{2} + x - 10)$

Step 1

Remove parentheses.

$- 3 x^{2} - x - 10 + 10 x^{2} + x - 10$

Step 2

Combine the opposite terms in

$- 3 x^{2} - x - 10 + 10 x^{2} + x - 10$ .

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Step 2.1

Add

$- x$ and

$x$ .

$- 3 x^{2} - 10 + 10 x^{2} + 0 - 10$

Step 2.2

Add

$- 3 x^{2} - 10 + 10 x^{2}$ and

$0$ .

$- 3 x^{2} - 10 + 10 x^{2} - 10$

$- 3 x^{2} - 10 + 10 x^{2} - 10$

Step 3

Add

$- 3 x^{2}$ and

$10 x^{2}$ .

$7 x^{2} - 10 - 10$

Step 4

Subtract

$10$ from

$- 10$ .

$7 x^{2} - 20$

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