কোন দুটি x2 − x − 6 = 0 সমীকরণের মূল?
Solution
Correct Answer: Option C
x² - x - 6 = 0
⇒ x² - 3x + 2x - 6 = 0
⇒ x(x - 3) + 2(x - 3) = 0
⇒ (x - 3) (x + 2) = 0
∴ x = -2, 3
⇒ x² - 3x + 2x - 6 = 0
⇒ x(x - 3) + 2(x - 3) = 0
⇒ (x - 3) (x + 2) = 0
∴ x = -2, 3
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