-15+x+2x2 এর উৎপাদক কত?

A (x+3)(2x-5)

B (x-3)(2x+5)

C (x+3)(2x+5)

D (x-3)(2x-5)

Solution

Correct Answer: Option A

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

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