(x²-x)(x+2)=0
X²-x = 0 v x+2 =0
X(x-1) = 0 x= -2
X=0 v x= 1
X={-2, 0,1}
(x²+x)(x-3)=0
X²+x= 0 v x-3= 0
X(x+1) =0 x= 3
X=0 x=-1
X={ -1,0,3}
x³-2x²-3x=0
X(x²-2x-3) /0
X=0 v x²-2x-3 =0
Delta = 4+12= 16
X1= 2-4 / 2 =-1
X2= 3
X={-1,0,3}
x³+5x²-6x=0
X( x²+5x-6) =0
X=0 v x²+5x-6 = 0
Delat = 25+24= 49
X1= -5- 7 / 2 = -6
X2= 1
X={-6,0,1}
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(x²-x)(x+2)=0
X²-x = 0 v x+2 =0
X(x-1) = 0 x= -2
X=0 v x= 1
X={-2, 0,1}
(x²+x)(x-3)=0
X²+x= 0 v x-3= 0
X(x+1) =0 x= 3
X=0 x=-1
X={ -1,0,3}
x³-2x²-3x=0
X(x²-2x-3) /0
X=0 v x²-2x-3 =0
Delta = 4+12= 16
X1= 2-4 / 2 =-1
X2= 3
X={-1,0,3}
x³+5x²-6x=0
X( x²+5x-6) =0
X=0 v x²+5x-6 = 0
Delat = 25+24= 49
X1= -5- 7 / 2 = -6
X2= 1
X={-6,0,1}