SOLUTION: please help me solve this equation n(n-3)<54 a)9 b)3 c)10

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Question 240004: please help me solve this equation
n(n-3)<54
a)9 b)3 c)10
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
n(n-3)<54
N^2-3N<54
N^2-3N-54<0
(N-9)(N+6)<0
N-9=0
N=9 ANS
N+6=0
N=-6 ANS.