AM-1552

Discriminant and nature of roots

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

1. $16k^2 - 28k + 1 \ge 0$
2. $16k^2 - 28k + 1 \le 0$
3. $16k^2 + 28k + 1 \ge 0$
4. $16k^2 - 28k - 1 \ge 0$

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