Simplify (2x^3+7x^2+x)+(2x^2-4x-12)

$(2 x^{3} + 7 x^{2} + x) + (2 x^{2} - 4 x - 12)$

Step 1

Remove parentheses.

$2 x^{3} + 7 x^{2} + x + 2 x^{2} - 4 x - 12$

Step 2

Add $7 x^{2}$ and $2 x^{2}$ .

$2 x^{3} + 9 x^{2} + x - 4 x - 12$

Step 3

Subtract $4 x$ from $x$ .

$2 x^{3} + 9 x^{2} - 3 x - 12$