Answer
7$x^{2}$+2x+14
Work Step by Step
The phrase, "Add (-2$x^{2}$+3x) and (9$x^{2}$-x+14)." can be translated into the expression: (-2$x^{2}$+3x)+(9$x^{2}$-x+14)
Simplify:
(-2$x^{2}$+3x)+(9$x^{2}$-x+14)
=-2$x^{2}$+3x+9$x^{2}$-x+14
=-2$x^{2}$+9$x^{2}$+3x-x+14
=7$x^{2}$+2x+14
