(a+b)²=(a-b)²+4ab proof / Algebraic Formula proof / Algebra / proof

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(a+b)²=(a-b)²+4ab is proved here step by step.Algebraic formula is proved here.Student can easily understand identity and can prove it. Proof will very easy for them.
(a+b)²=(a-b)²+ 4ab proof
Algebraic Formula Proof
Algebra
Proof
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thanks a lot sir
i was very curious to know the profe of this formula ( because i cannot follow it blindly ){although i know that it was correct}

aditya__jais
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Hello friend 9Videos done from PinayNene life in UK

indaygariando
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Muito bom o vídeo, consegui enterder. sou do Brasil.

lindomar