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2x2 - x - 15 এর উৎপাদক হবে- 

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A

(x + 6)(x - 5) 

B

(x - 5)(x - 6) 

C

(x + 3)(2x - 5) 

D

(2x + 5)(x - 3)

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প্রশ্ন: 2x2 - x - 15 এর উৎপাদক হবে-

সমাধান:
2x2 - x - 15
= 2x2 - 6x + 5x - 15
= 2x(x - 3) + 5(x - 3)
= (x - 3)(2x + 5)

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Updated: 2 months ago

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