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1 . x2-3x-2

A. 0
B. 2
C. 6
D. 4

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Answer: Option B

Explanation:

দেওয়া আছে, x^{2} - 3 x - 2 ধরি, x + 1 = 0, x = - 1 অতএব, x^{2} - 3 x - 2 = {(1)}^{2} - 3 (- 1) - 2 = 1 + 3 - 2 = 4 - 2 = 2

2 . x2-3x-2

A. 0
B. 2
C. 6
D. 4

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Answer: Option B

Explanation:

দেওয়া আছে, x^{2} - 3 x - 2 ধরি, x + 1 = 0, x = - 1 অতয়াব, x^{2} - 3 x - 2 = {(- 1)}^{2} - 3 (- 1) - 2 = 1 + 3 - 2 = 4 - 2 = 2

3 . x2-3x-2

A. 0
B. 2
C. 6
D. 4

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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