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代数2

课程 8: 含有复数解的二次方程式

求解二次方程：复数解

计算下列二次方程的解 3, x, squared, minus, 5, x, plus, 1, equals, 0。

(选择 A)
minus, start fraction, 5, divided by, 6, end fraction, plus minus, start fraction, square root of, 13, end square root, divided by, 6, end fraction
(选择 B)
start fraction, 5, divided by, 6, end fraction, plus minus, start fraction, square root of, 13, end square root, divided by, 6, end fraction
(选择 C)
start fraction, 5, divided by, 6, end fraction, plus minus, start fraction, square root of, 13, end square root, divided by, 6, end fraction, i
(选择 D)
minus, start fraction, 5, divided by, 6, end fraction, plus minus, start fraction, square root of, 13, end square root, divided by, 6, end fraction, i

不会做了？