2x2 + x - 15 এর উৎপাদক কোনটি?

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

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

C (x - 3)(2x - 5)

D কোনটিই নয়

Solution

Correct Answer: Option A

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

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