help me to solve this
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addyrocks1094:
ok dii
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(a+b)^2 = a^2+b^2 +2ab.
(a+b+c)^2 = a^2+b^2+c^2 + 2(ab+bc+ca).
(a+b+c)^2 = a^2+b^2+c^2 + 2(ab+bc+ca).
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hope it helps u dearrr
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