Act. 4a, jaqueline j. lugo
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Act. 4ª:Jaqueline J. LugoPRIMERA PARTE:AP21)A-
(X+1)(X+3)<0x+1=0x+3=0
x=-1 x=-3
x<−3−3<x<−1
−1<x−3<x<−1(−3;−1)
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SEGUNDA PARTE:
(X+1)(X+3)>0X+1=0X+3=0
X=-1 x=-3X<-3
-3<x<-1-1<x
X<-3 o x>-1(-∞;3)∪(-1;∞)