How do you prove that x^2y^2-5xy+7>0

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- Feb 28th 2013, 03:59 AMRuyHayabusaProving quadratics
How do you prove that x^2y^2-5xy+7>0

- Feb 28th 2013, 04:37 AMibduttRe: Proving quadratics
- Feb 28th 2013, 05:10 AMProve ItRe: Proving quadratics
- Feb 28th 2013, 05:49 AMRuyHayabusaRe: Proving quadratics
Thanks everyone!