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Find the discriminant of the following quadratic equation.
1. \(3x^2 - 2x + 1 = 0\)
Discriminant \(=\)
Nature of roots: .
2. \(5x^2 - 14x - 3 = 0\)
Discriminant \(=\)
Nature of roots: .
[Note: Enter minus symbol wherever required]
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