Question

数学高手进！帮我解答下两道高一数学题，高分悬赏，如图所示

Answer 1

10.设函数f(x)=x²+2(m-1)x+m+2
(1)f(0)<0
m+2<0
m<-2
(2)f(1)<0
1+2m-2+m+2<0
3m<-1
m<-1/3
(3)f(0)>0,f(1)<0,f(2)>0
m+2>0,m<-1/3,4+4m-4+m+2>0
m>-2,m<-1/3,m>-2/5
-2/5<m<-1/3
11.设函数f(x)=x²+2mx+2m+1
(1)f(-4)<0
16-8m+2m+1<0
m>17/6
(2)f(-4)<0,f(-2)<0
m>17/6,4-4m+2m+1<0
m>17/6,m>5/2
m>17/6
(3)f(-4)>0,f(-2)<0
5/2<m<17/6