Simplify (2x-x^3-2x^2)+(-x^3-2x)

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

Step 1

Remove parentheses.

$2 x - x^{3} - 2 x^{2} - x^{3} - 2 x$

Step 2

Combine the opposite terms in $2 x - x^{3} - 2 x^{2} - x^{3} - 2 x$ .

Subtract $2 x$ from $2 x$ .

$- x^{3} - 2 x^{2} - x^{3} + 0$

Add $- x^{3} - 2 x^{2} - x^{3}$ and $0$ .

$- x^{3} - 2 x^{2} - x^{3}$

Step 3

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

$- 2 x^{3} - 2 x^{2}$