Question

Write in expended form of (a+b+c)²
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Answer 1

Answer:

a2 +b2+c2kwoomw a

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w/o.wokw

w

Answer 2

Answer:

Formula,

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

+2ab+2bc+2ca

Given,

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

=a^2 +4b^2 +c^2 + 4ab+ 4bc+ 2ac