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x=0
x-2=0
x=2
x+1=0
x=-1
x={-1,0,2}
b) x(x+)(x-6)=0
x=0
x+ = 0
x=-
x-6=0
x=6
x={-,0, 6}
c)x(2x+1)(3x+1)=0
x=0
2x+1=0
2x=-1
x=-
3x+1=0
3x=-1
x=-
x={-,-,0}
d)x(3x-2)(2x+3)=0
x=0
3x-2=0
3x=2
x=
2x+3=0
2x=-3
x=-
x={-, 0, }
|x| <
x<
x>-
x=<-; >