Question:নিচের কোনটি `a^2 + 2ac + c^2`এর মান ? 

A 9 
B 13 
C 36 
D 19 

+ Answer
A 

+ Explanation
`a^2 + 2ac + c^2`

=` (2)^2 + 2 xx 2 xx 1 + (1)^2`

=` 2 xx 2 + 4 + 1 xx 1`

= ` 4 + 4 + 1 = 9`

+ Report

Irin Moni

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