Pre-Algebra Examples

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

Step 1

Remove parentheses.

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

Step 2

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

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

Step 3

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

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

Step 4

Add $- 4 x$ and $x$ .

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

Step 5

Subtract $4$ from $5$ .

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