AM-1078

Discriminant and nature of roots

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

1. $(k-2)^2 - 20 \ge 0$
2. $(k-2)^2 + 20 \ge 0$
3. $(k-2)^2 - 20 = 0$
4. $(k-2)^2 - 20 \le 0$

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