作业帮解方程：(2-x)(3-x)(5-x)=51
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/25 07:06:27
解方程：(2-x)(3-x)(5-x)=51
解方程：(2-x)(3-x)(5-x)=51
解方程：(2-x)(3-x)(5-x)=51
x1 = 1/3 (10 -
7 (2/(1357 - 9 √[22717]))^(
1/3) - (1/2 (1357 - 9 √[22717]))^(1/3));
x 2 =
10/3 + 1/6 (1 + i √[3]) (1/2 (1357 - 9 √[22717]))^(1/3) + (
7 (1 - i√[3]))/(
3 2^(2/3) (1357 - 9 √[22717])^(1/3));
x =
10/3 + 1/6 (1 - i √[3]) (1/2 (1357 - 9 √[22717]))^(1/3) + (
7 (1 + i √[3]))/(3 2^(2/3) (1357 - 9 √[22717])^(1/3))
用Mathematica解的
答案不是有理数吧！！！
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