CAT 2024 Slot 1 QA · Question 20

If the equations $x^{2} + m x + 9 = 0, x^{2} + n x + 17 = 0$ and $x^{2} + (m + n) x + 35 = 0$ have a common negative root, then the value of $(2 m + 3 n)$ is

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