Answer
3$x^{2}$ + 2x - 9
Work Step by Step
(2$x^{2}$ + 3x - 4) + (4$x^{2}$ - 3x - 6) - (3$x^{2}$ - 2x - 1) =
Use the distributive property.
2$x^{2}$ + 3x - 4 + 4$x^{2}$ - 3x - 6 - 3$x^{2}$ + 2x + 1 =
Group similar terms.
(2$x^{2}$ + 4$x^{2}$ - 3$x^{2}$) + (3x - 3x + 2x) + (-4 - 6 + 1) =
Simplify.
3$x^{2}$ + 2x - 9
