Math Olympiad Problem | A Nice Algebra Challenge | Mathematics

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Math Olympiad Problem | A Nice Algebra Challenge | Mathematics

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Thanks to share such exercise. At 3:50, why didn't you calculate (i)-(ii) to obtain directly ab? a^2-ab+b^2 = 12 + 2ab

pierreneau
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Resolvi de modo bem mais simples. (I solved it in a much simpler way.)

souzasilva