Question

What is a+b+c the whole square

Answer 1

$\huge \bf (a + b + c)^{2} \\ \\ \sf \rightarrow {a}^{2} + {b}^{2} + {c}^{2} + 2(ab + bc + ac) \\ \\ \red{ \sf \rightarrow {a}^{2} + {b}^{2} + {c}^{2} + 2ab + 2bc + 2ac}$

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