Difference Quotient of x^2-2x

Question

(x+h)^2-2(x+h)-(x^2-2x) / h
x^2+2xh+h^2-2x-2h-x^2+2x / h

x^2 cancel out
2x cancel out
h and -2h cancel and leave -2

result: h^2+2xh-2

Answer 1

I believe you forgot to divide the h^2 by h.

result:
(h^2+2xh-2h)/h
= h+2x-2

Answer 2

ok that makes sense. Thanks for the help