(x²+2x-3)/ (x+1)>0
(x+3)(x-1)/(x+1)>0;
∴-3<x<-1或x>1
如果本题有什么不明白可以追问,
猜你喜欢
- 1一根铁丝可围成一个长十五dm宽七dm高二dm的长方体模型如果用这根铁丝围成一个正方体的棱长应该是多少分米?
- 2Do you.与Are you.的区别
- 3more than one studentd 后接的谓语用单用复?
- 4小明喝了一杯牛奶六分之一,加满水,又喝了整杯三分之一,再倒满水后又喝了半杯,又加满水,最后把一杯
- 5n个相同阻值的电阻R,串联后接入电压为220V的电路中,则电阻R上的电压为几伏
- 6It made Sarah think about her family and friends back in the US.中think about back的意思
- 7关于小区英语作文
- 8we usually have three meals a day 一般疑问句
- 9How much rice do you want [翻译】
- 10when did you come back?