x2 + 8x + 15 এর উৎপাদক কী?

A x+3, x+5

B x−3, x−5

C x+1, x+15

D x−1, x−15

Solution

Correct Answer: Option A

x2 + 8x + 15 এর
= x2 + 3x + 5x + 15 
= x(x + 3) + 5(x + 3) 
= (x + 3) (x + 5)

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