Question

solve this questions
Please Help me ​

Answer 1

Answer:

⇒ a(a+b+c) + b(a+b+c) + c(a+b+c)

⇒  $a^{2} + ab + ac + b^{2} + ba + bc + c^{2} + ca + cb$

⇒ $a^{2} + b^{2} + c^{2} + 2ba + 2ac + 2bc$   ANSWER

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