what is -x squared minus 2x squared

Input:

\((A)-x^2-2x^2\)

\(=-3x^2\)

\((B)(-x)^2-2x^2\)

\(=-x^2\)

\((C)-x^2-(2x)^2\)

\(=-5x^2\)

\((D) (-x)^2-(2x)^2\)

Check which one matches your question :D

(This is why you shouldn't ask a math equation in plain English)

Plain English is fine but you still need to use brackets :)