Question

( a+ b+ c )^2 =??? ​

Answer 1

Answer:

(a+b+c)² = a²+b²+c²+2(ab+bc+ca)

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Answer 2

Answer:

(a+b+c)^2=(a+b+c)(a+b+c)

a^2+b^2+c^2+2ab+2bc+2ac

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