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Whole square of a + b |
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Answer» Taking LHS of the identity: (a + B)2 This can ALSO be written as: = (a + b) (a + b) Multiply as we do multiplication of TWO BINOMIALS and we get: = a(a + b) + b(a + b) = a2 + ab + ab + b2 ADD like terms and we get: = a2 + 2ab + b2 Rearrange the terms and we get: = a2 + b2 + 2ab Hence, in this way we obtain the identity i.e. (a + b)2 = a2 + b2 + 2ab |
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