( x+ 3 )×(x-1 ) >-3用公式法怎么解?

2025-06-22 22:58:49
推荐回答(1个)
回答1:

( x+ 3 )×(x-1 ) >-3
x²+2x-3+3>0
(x+1)²>1
x+1>1 x>0

x+1<-1 x<-2