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#1 2010-04-01 03:10:52

soha
Real Member
Registered: 2006-07-07
Posts: 2,530

b^2 -4ac

If a + b + c = 0 prove that b^2 – 4ac is a perfect square.


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#2 2010-04-01 04:23:29

ZHero
Real Member
Registered: 2008-06-08
Posts: 1,889

Re: b^2 -4ac







Last edited by ZHero (2010-04-01 04:39:49)


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#3 2010-04-01 04:41:47

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: b^2 -4ac



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