Please answer the following questions, thank you?
回答 (1)
2021-01-25 5:56 pm
✔ 最佳答案
1.y=-3x^2+5x+4
y=2x-2
x=-1 y=-4
x=2 y=2
2
7x+2(2x+3)<-5
7x+4x+6<-5
11x<-11
x<-11
5-7x>-5x-13
18>2x
9>x
so the ans is x<-11
收錄日期: 2021-04-24 08:09:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20210124083434AAkDvZ3