Question:x + 2y এর বর্গ কোনটি? 

A ` x^2 + 2xy + y^2` 
B `x^2 + 4xy + 4y^2` 
C `x^2 + 2xy + 4t^2` 
D `x^2 + xy + y^2` 

+ Answer
B 

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Irin Moni

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