SOLUTION: functions f(x)=xx+2x+3 find f(a+1)

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Question 140715: functions
f(x)=xx+2x+3
find f(a+1)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=xx+2x+3
find f(a+1)
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f(a+1) = (a+1)(a+1)+2(a+1)+3
f(a+1) = a^2+2a+1+2a+2+3
f(a+1) = a^2 + 4a + 6
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Cheers,
Stan H.