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November 25, 2014

November 25, 2014

Posted by **Arturo** on Wednesday, April 2, 2008 at 9:33pm.

f(n) = n^2 + 4n is O(n^2)

- Mathematics -
**Count Iblis**, Wednesday, April 2, 2008 at 10:25pmSee here:

http://en.wikipedia.org/wiki/Big_O_notation#Formal_definition

You need to find an N and an M > 0 such that

n^2 + 4n < M n^2

for all n > N

This looks like a trivial problem to me...

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