SOLUTION: If f(x) = x^2 +7x find f(b+2)

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Question 813633: If f(x) = x^2 +7x find f(b+2)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

If f(x) = x^2 +7x 

  f(b+2)= (b+2)^2 + 7(b+2)   | Substituting (b+2) for x

Or      = b^2 + 4b + 4 + 7b + 14

0r      = b^2 + 11b + 18