2005/08/15 | Vieta置换[Vieta's Substitution]
类别(∑〖数学〗) | 评论(0) | 阅读(55) | 发表于 20:46
The substitution of
(1)

into the standard form cubic equation
(2)

The result reduces the cubic to the equation
(3)

which is easily turned into a quadratic equation in by multiplying through by to obtain
(4)
0

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