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1. $x^{2} - 3 x - 2$

Answer: Option B

Explanation:

{দেওয়া আছে,x}^{2} -3x-2 ধরি, x+1=0 বা,x=-1 অতএব, x^{2} - 3 x - 2 = {(- 1)}^{2} - 3 . (- 1) - 2 = 1 + 3 - 2 = 2

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