Math, asked by Armaan90, 1 year ago

simplify :(l-3m)²+6lm

Answers

Answered by DevilDoll12

HEYA!!
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$(l - 3m) {}^{2 } + 6lm \\ \\ l {}^{2} + 9m {}^{2} - 6lm + 6lm \\ \\ = > > l {}^{2} + 9m {}^{2}$
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DevilDoll12: and on opening the identity (l - 3m ) ^2 we have - 6lm

DevilDoll12: we have used the identity (a-b)^2 = a^2+ b^2 - 2ab

tushar7863: yeah i know

tushar7863: i did it wrong to not used the identity

DevilDoll12: the answer is only wrong

DevilDoll12: edit it or it will be deleted

Armaan90: how wrong

tushar7863: i cant it get reported

DevilDoll12: ohh

tushar7863: thks

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