SOLUTION: Find f(x+3) for the function f(x)=x^2-4

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Question 120217: Find f(x+3) for the function f(x)=x^2-4
Answer by solver91311(24713) About Me  (Show Source):
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Find f%28x%2B3%29 for the function f%28x%29=x%5E2-4

Replace x in f%28x%29 every place x occurs.

f%28x%2B3%29=%28x%2B3%29%5E2-4

Now expand the binomial and simplify:

f%28x%2B3%29=x%5E2%2B6x%2B9-4=x%5E2%2B6x%2B5