AM-1553

Discriminant and nature of roots

A Math · Secondary 4 · Medium · Discriminant and nature of roots

1. $k < \dfrac{17-2\sqrt{66}}{25}$ or $k > \dfrac{17+2\sqrt{66}}{25}$
2. $\dfrac{1}{25} < k < 1$
3. $k \le \dfrac{1}{25}$ or $k \ge 1$
4. $k > \dfrac{1}{25}$

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