x2-x-2 এর একটি উৎপাদক-

A (x +1)

B (x +2)

C (x-3)

D (x-1)

Solution

Correct Answer: Option A

  x2-x-2 

= x^2 - 2x + x - 2 

= x(x-2) + 1 (x-2) 

= (x-2) (x+1) 

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