Question 1035910
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If f(x)= x²-x 
Then f(x+1)-f(x) =!?
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If f(x)= {{{x^2-x}}}  then  f(x+1) = {{{(x+1)^2 - (x+1)}}}.  


Then f(x+1)-f(x) = {{{(x+1)^2 - (x+1)}}} - {{{(x^2-x)}}}.


Now open the parentheses and simplify.


Keep in mind that you got the BEST possible answer.


The rest is on your own.
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