Question:`(x^2 - 9)/(ax + 3a)` এর লঘিষ্ট রুপ নিচের কোনটি? 

A `(x + 3)/a` 
B `a/(x + 3)` 
C `(x - 3)/a` 
D `a/(x - 3)` 

+ Answer
C 

+ Explanation
`(x^2 - 9)/(ax + 3a)`

    `= (x^2 - 3^2)/(a(x + 3)`

   `= ((x + 3) (x - 3))/(a(x + 3))`

  `= (x - 3)/a`

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Irin Moni

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