How do you simplify (-3x^3 + x - 11) - (4x^3 + x^2 - x)?

Aug 29, 2016

$- 7 {x}^{3} - {x}^{2} + 2 x - 11$

Explanation:

Given -

$\left(- 3 {x}^{3} + x - 11\right) - \left(4 {x}^{3} + {x}^{2} - x\right)$

First remove the brackets.

$- 3 {x}^{3} + x - 11 - 4 {x}^{3} - {x}^{2} + x$

Then simplify by collecting the like terms together.

$- 7 {x}^{3} - {x}^{2} + 2 x - 11$