The resulting expression on expansion is 2x^2 + x - 10
Equations and expressions
Linear equations are equation with a leading degree of 1.
Given the expression below;
-(2x - (-9) ) + 3x + 2x(x-1)
Expand to have;
-2x -9 + 3x + 2x^2 - 1
Collect like terms
2x^2 + x - 10
Hence the resulting expression on expansion is 2x^2 + x - 10
learn more on expression here: https://brainly.com/question/723406
#SPJ1
