Pre-Algebra Examples

$5 x^{3} + 9 x^{2} - 2 x + 1 + x^{3} - 2 x^{2} - 3 x$

Step 1

Add $5 x^{3}$ and $x^{3}$ .

$6 x^{3} + 9 x^{2} - 2 x + 1 - 2 x^{2} - 3 x$

Step 2

Subtract $2 x^{2}$ from $9 x^{2}$ .

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

Step 3

Subtract $3 x$ from $- 2 x$ .

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