x2 - x - 2 এর উৎপাদক কোনটি?

A x + 2

B x + 3

C x + 1

D x - 1

Solution

Correct Answer: Option C

x2 - x - 2 
 
= x2 - 2x + x - 2 

= x(x-2) + 1 (x-2) 

= (x-2) (x+1)

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