Viète's substitution Any cubic equation can be put in the form x3 + ax + b = 0 by means of a translation. Viète's substitution x = t − a/(3t) tranforms this cubic equation in x into a quadratic in t3.
Viète's substitution
数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。