Mathematics
​Find and simplify the different quotient f(x+h)-f(x) / h f(x)=x^2-9x+2 f(x+

Question Description

Find and simplify the different quotient 

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

f(x)=x^2-9x+2

f(x+h)-f(x) / h =???? simplify 

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Final Answer

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f(x)=x^2-9x+2

f(x+h)= (x+h)^2-9(x+h)+2= x^2+2xh+h^2-9x-9h+2

f(x+h)-f(x) / h = (x^2+2xh+h^2-9x-9h+2-x^2+9x-2)/h 

=(2xh+h^2-9h)/h= h(h+2x-9)/h = h+2x-9

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Cornell University

Anonymous
Just what I was looking for! Super helpful.

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