SOLUTION: If f(x)=x squared+5, find f(a+h)-f(a)

Question 90262This question is from textbook
: If f(x)=x squared+5, find f(a+h)-f(a) This question is from textbook

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
First evaluate f(a+h)

plug in x=a+h

Foil

Combine like terms

So

Now evaluate f(a)

plug in x=a

So

Now combine the two expressions

Plug in the expressions previously solved for

Distribute the negative

Combine like terms
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