how is the (a+c+b) whole square identity is formed
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(a+c+b)^2 =[(a+c)^2+b]2
= [a+c]^2 +2(a+c)*b + b^2
= a^2+c^2+2ac+2ab+2bc+b^2
= a^2+c^2+b^2+2ab+2bc+2ac
= [a+c]^2 +2(a+c)*b + b^2
= a^2+c^2+2ac+2ab+2bc+b^2
= a^2+c^2+b^2+2ab+2bc+2ac
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