Question

pls answer fast ...... URGENT!!!!

Answer 1

here is your answer
(a+2b+c)^2
using identity (a+b+c)^2
= a^2 + b^2 + c^2 + 2ab +2bc + 2 ac

the answer is
a^2 + (2b)^2 + c^2 + 2×a×2b + 2×2b×c + 2×a×c

${a}^{2} + 4 {b}^{2} + {c}^{2} + 4ab \: + 4bc \: + 2ac$
this is answer of your question

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