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Mathematics, 20.09.2020 01:01 719563mercy

Which two equations have only imaginary solutions? 3x2 + 5x + 12 = 0
3x2 + 7x - 2 = 0
3x2 - 5x + 10 = 0
2x2 + 4x - 6 = 0
2x2 - 5x - 10 = 0

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Which two equations have only imaginary solutions? 3x2 + 5x + 12 = 0
3x2 + 7x - 2 = 0
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