Pre-Algebra Examples

$(2 x^{3} + 3 x^{2} + 4) + (6 x^{3} - x^{2} - 5 x)$

Step 1

Remove parentheses.

$2 x^{3} + 3 x^{2} + 4 + 6 x^{3} - x^{2} - 5 x$

Step 2

Add $2 x^{3}$ and $6 x^{3}$ .

$8 x^{3} + 3 x^{2} + 4 - x^{2} - 5 x$

Step 3

Subtract $x^{2}$ from $3 x^{2}$ .

$8 x^{3} + 2 x^{2} + 4 - 5 x$