2x2 - x – 3 এর উৎপাদক-

 

A    (2x + 1)(x-3)

B    (x-1)(2x + 3)

C    (x+1)(2x-3)

D    (2x-1)(x+3)

Solution

Correct Answer: Option C

 

2x2 - x – 3 এর উৎপাদক-

2x2 - x – 3

এই অংকটি Middle Term এর মাধ্যমে করব। 

2x2 -3x + 2x - 3 

=x(2x-3) +1(2x-3)

= (2x-3) (x+1)

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