Simplify (3x^2-x)+5x^3+(-4x^3+x^2-8)

$(3 x^{2} - x) + 5 x^{3} + (- 4 x^{3} + x^{2} - 8)$

Step 1

Remove parentheses.

$(3 x^{2} - x) + 5 x^{3} - 4 x^{3} + x^{2} - 8$

Step 2

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

$(- x) + 5 x^{3} - 4 x^{3} + 4 x^{2} - 8$

Step 3

Subtract $4 x^{3}$ from $5 x^{3}$ .

$- x + x^{3} + 4 x^{2} - 8$

Step 4

Move $- x$ .

$x^{3} + 4 x^{2} - x - 8$