2x2 + x - 15 এর উৎপাদক কোনটি?      

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

 

2X2+X-15  =  2X2+6X-5X-15

  = 2x(x+3) -5(x+3) =(2x-5)(x+3)

           

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