## Elementary Algebra

-8$x^{2}$ + 18
(-3$x^{2}$ - 2x + 4) - ($x^{2}$ - 5x - 6) - (4$x^{2}$ + 3x - 8) = Use the distributive property. -3$x^{2}$ - 2x + 4 - $x^{2}$ + 5x + 6 - 4$x^{2}$ - 3x + 8 = Group similar terms. (-3$x^{2}$ - $x^{2}$ - 4$x^{2}$) + (-2x + 5x - 3x) + (4 + 6 + 8) = Simplify. -8$x^{2}$ + 18