求过程!!!急!!!!!!!!!!!!!!!
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(m^2+4m-5)x^2-4(m-1)x+3<0
1 if m^2+4m-5=(m+2)^2-9=0 既 m=1或者-5
when m=1 it meets the condition.
when m=-5, 24x+3<0 No.
2 if m^2+4m-5 >0 --- m>1 OR m<-5
only if b^2-4ac=16(m-1)^2-12(m^2+4m-5)<0 --- -5<m<1 the condition is to be met
3 if m^2+4m-5<0 No
So. -5<m<=1
1 if m^2+4m-5=(m+2)^2-9=0 既 m=1或者-5
when m=1 it meets the condition.
when m=-5, 24x+3<0 No.
2 if m^2+4m-5 >0 --- m>1 OR m<-5
only if b^2-4ac=16(m-1)^2-12(m^2+4m-5)<0 --- -5<m<1 the condition is to be met
3 if m^2+4m-5<0 No
So. -5<m<=1
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