Please answer the following questions, thank you?

2021-01-24 4:34 pm

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
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