SOLUTION: If f(x)=(2x-1)(2x+1)-(x-1),find f(n+1) in its simplest form

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Question 1159012: If f(x)=(2x-1)(2x+1)-(x-1),find f(n+1) in its simplest form

Answer by Amily_2190(27) About Me  (Show Source):
You can put this solution on YOUR website!
f(n+1)=(2(n+1)-1)(2(n+1)+1)-((n+1)-1)
=(2n+2-1)(2n+2+1)-(n)
=(2n+1)(2n+3)-n
Use FOIL
=4n^2+6n+2n+3-n
=4n%5E2%2B7n%2B3