Question 751401
f(x)=x^2-x


f(x+h)=(x+h)^2-(x+h)


f(x+h)=x^2+2xh+h^2-x-h


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[ f(x+h) - f(x) ]/h


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


[ x^2+2xh+h^2-x-h - x^2+x ]/h


[ 2xh+h^2-h ]/h


[ h(2x+h-1) ]/h


2x+h-1


2x-1+h


Final Answer: 2x-1+h