Proof | Mathematics | Page 1

flint egret Feb 25, 2023, 2:14 AM

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Proof

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could someone explain ii

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how did they get 2xy <8x^2

quasi orchid Feb 25, 2023, 2:32 AM

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they expand the LHS
x² + 2xy + y² < 9x² + y²
x² + 2xy < 9x²
2xy < 8x²

flint egret Feb 25, 2023, 2:33 AM

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ohhh tyy

sweet marshBOT Feb 25, 2023, 2:33 AM

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@robust haven has given 1 rep to @quasi orchid

#Proof