Math, asked by ach22252, 2 months ago

please tell please tellplease tellplease tellplease tellplease tellplease tell

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Answers

Answered by aartigoswami323

1

Step-by-step explanation:

in this eq add and subtract 2ab,2bc and 2ca

then eq is

a²+b²+c²+2ab+2bc+2ca-3ab-3bc-3ca

(a+b+c)²-3(ab+bc+ca)

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