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

(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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