SOLUTION: f(x) = x2 + 7 Find f(a + 3).

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Question 1048158: f(x) = x2 + 7 Find f(a + 3).
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+x%5E2+%2B+7


f%28x%29+=+%28x%29%5E2+%2B+7


f%28a%2B3%29+=+%28a%2B3%29%5E2+%2B+7 Replace every 'x' with 'a+3'


f%28a%2B3%29+=+a%5E2%2B6a%2B9+%2B+7 FOIL


f%28a%2B3%29+=+a%5E2%2B6a%2B16 Combine like terms