let discuss about three variables
ex:
(a+b+c)2=a2+b2+c2+2ab+2bc+2ca
(a+b-c)2=a2+b2+c2+2ab-2bc+2ca
no need to learn these all
justt understand the concept
if a is negative simply put it -a at the value of a and so on!!!!!!!!
ex:
(a+b+c)2=a2+b2+c2+2ab+2bc+2ca
(a+b-c)2=a2+b2+c2+2ab-2bc+2ca
no need to learn these all
justt understand the concept
if a is negative simply put it -a at the value of a and so on!!!!!!!!
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