Simplify (4x-2x^3)+(5x^3-4x+5)

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

Step 1

Remove parentheses.

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

Step 2

Combine the opposite terms in $4 x - 2 x^{3} + 5 x^{3} - 4 x + 5$ .

Subtract $4 x$ from $4 x$ .

$- 2 x^{3} + 5 x^{3} + 0 + 5$

Add $- 2 x^{3} + 5 x^{3}$ and $0$ .

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

Step 3

Add $- 2 x^{3}$ and $5 x^{3}$ .

$3 x^{3} + 5$