Question

which would be the first step in simplifying (-2x^2+3x)-(5x^2-9x+2)

Answer 1

My first step would be to distribute the negative sign into the second parenthesis you see which looks like this:
\[-5x^2+9x-2\]
You should then be able to combine like terms. By that I mean treat x-squared's as a unique variable or item (like an apple) and x's as a different variable or item (like an orange) and the constants last. Once you sum/add them together, if you need to simplify further some people will say the "ideal" simplification looks something like this:
\[(12-7x)x-2\]

Answer 2

thanks