Pre-Algebra Examples

$(15 x^{2} - 3 x + 11) + (2 x^{3} - x^{2} + 6 x + 1)$

Step 1

Remove parentheses.

$15 x^{2} - 3 x + 11 + 2 x^{3} - x^{2} + 6 x + 1$

Step 2

Subtract $x^{2}$ from $15 x^{2}$ .

$14 x^{2} - 3 x + 11 + 2 x^{3} + 6 x + 1$

Step 3

Add $- 3 x$ and $6 x$ .

$14 x^{2} + 3 x + 11 + 2 x^{3} + 1$

Step 4

Add $11$ and $1$ .

$14 x^{2} + 3 x + 2 x^{3} + 12$