expand (a-2b) ² please, tell fastplz
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Heeyy! Here it is. Hope it helps
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(a-2b)^2
By using the identity , (a-b)^2 = a^2 +b^2 -2ab
We get , = a^2 +4b^2 - 4ab
By using the identity , (a-b)^2 = a^2 +b^2 -2ab
We get , = a^2 +4b^2 - 4ab
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