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数学
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解方程:(X/X-1)²-(X/X-1)+6=0
人气:282 ℃ 时间:2020-05-24 22:01:44
解答
令a=x/(x-1)
a²-a+6=0
这个无解
若是-6
则a²-a-6=0
(a-3)(a+2)=0
a=3,a=-2
x/(x-1)=3
x=3x-3
x=3/2
x/(x-1)=-2
x=-2x+2
x=2/3
所以x=3/2,x=2/3
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