Pre-Algebra Examples

$(- 4 x + 4 x^{3} + 7) + (3 x^{3} - 9 - 3 x)$

Step 1

Remove parentheses.

$- 4 x + 4 x^{3} + 7 + 3 x^{3} - 9 - 3 x$

Step 2

Subtract $3 x$ from $- 4 x$ .

$- 7 x + 4 x^{3} + 7 + 3 x^{3} - 9$

Step 3

Add $4 x^{3}$ and $3 x^{3}$ .

$- 7 x + 7 x^{3} + 7 - 9$

Step 4

Subtract $9$ from $7$ .

$- 7 x + 7 x^{3} - 2$

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