已知3a²+ab-2b²=0,求a/b-b/a-(a²+b²)/ab的值这一步,我也算出来了,我是想要根据“3a²+ab-2b²=0”得出具体值……
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 10:16:20
![已知3a²+ab-2b²=0,求a/b-b/a-(a²+b²)/ab的值这一步,我也算出来了,我是想要根据“3a²+ab-2b²=0”得出具体值……](/uploads/image/z/250240-40-0.jpg?t=%E5%B7%B2%E7%9F%A53a%26%23178%3B%2Bab-2b%26%23178%3B%3D0%2C%E6%B1%82a%EF%BC%8Fb-b%EF%BC%8Fa-%EF%BC%88a%26%23178%3B%2Bb%26%23178%3B%EF%BC%89%EF%BC%8Fab%E7%9A%84%E5%80%BC%E8%BF%99%E4%B8%80%E6%AD%A5%EF%BC%8C%E6%88%91%E4%B9%9F%E7%AE%97%E5%87%BA%E6%9D%A5%E4%BA%86%EF%BC%8C%E6%88%91%E6%98%AF%E6%83%B3%E8%A6%81%E6%A0%B9%E6%8D%AE%E2%80%9C3a%26%23178%3B%2Bab-2b%26%23178%3B%3D0%E2%80%9D%E5%BE%97%E5%87%BA%E5%85%B7%E4%BD%93%E5%80%BC%E2%80%A6%E2%80%A6)
x){}KՔ
-t l[gOMtAռ Iz>iÞg>l{zuL|suӟz6w]mg3?kbY;{0ݏ>u?jXD6IETu4@\fӾOj$&iF d%'*= iGۋ4Z@u5zIF
E
!XD/;JY4#^i^JjQqIb^~qAb(@2Q
已知3a²+ab-2b²=0,求a/b-b/a-(a²+b²)/ab的值这一步,我也算出来了,我是想要根据“3a²+ab-2b²=0”得出具体值……
已知3a²+ab-2b²=0,求a/b-b/a-(a²+b²)/ab的值
这一步,我也算出来了,我是想要根据“3a²+ab-2b²=0”得出具体值……
已知3a²+ab-2b²=0,求a/b-b/a-(a²+b²)/ab的值这一步,我也算出来了,我是想要根据“3a²+ab-2b²=0”得出具体值……
1.原式=(a2-b2)/ab-(a2+b2)/ab=-2(b2/ab)=-2b/a
2.因式分解 (3a-2b)*(a+b)=0
3.a/b=3/2 or a/b=-1
4.key:-3或2
5.understand?