2x² - x - 15 এর উৎপাদক হবে -

A (x+6)(x-5)

B (x-5)(x-6)

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

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

Solution

Correct Answer: Option D

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