Pre-Algebra Examples

$(3 x^{2} - 4 x - 1) + (8 x^{2} - x + 6)$

Step 1

Remove parentheses.

$3 x^{2} - 4 x - 1 + 8 x^{2} - x + 6$

Step 2

Add $3 x^{2}$ and $8 x^{2}$ .

$11 x^{2} - 4 x - 1 - x + 6$

Step 3

Subtract $x$ from $- 4 x$ .

$11 x^{2} - 5 x - 1 + 6$

Step 4

Add $- 1$ and $6$ .

$11 x^{2} - 5 x + 5$

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