Question

(a+b+c)² is solve and please help me.​

Answer 1

Step-by-step explanation:

==a^2 + ab+ ac+ ab + b^2 + bc + ca + cb+ c^2

==a^2+ b^2 + c^2+ 2( ab + bc + ca)

so .. (a+ b + c)^2 == a^2 + b^2+ c^2+ 2( ab + bc+ ca)

Answer 2

Answer:

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