Question:`x^2-5x+6=0`সমীকরণটির সমাধান সেট নিচের কোনটি ? 

A `{2, 3}` 
B `{2, -3}` 
C `{-2, 3}` 
D `{-2, -3}` 

+ Answer
A 

+ Explanation
`x^2-2x-3x+6=0`
   বা,`(x-2)(x-3)= 0 :. x = 2,3`
   সমাধান সেট = `{2, 3}`

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Rashada Nipa

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