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a2 + b2 = (a + b)2 - 2ab = (a - b)2 + 2ab.a2 - b2 = (a + b)*(a - b)

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7y ago

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More answers

(a^2 + b^2) (c^2 + d^2) = (ac - bd)^2 + (ad+bc)^2

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Mori Fraenkel

Lvl 2
2y ago
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