2x(x-1)=0 x²+4=4x (x-3)(x+1)=0 x²-3x+1=0

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2x(x-1)=0 x²+4=4x (x-3)(x+1)=0 x²-3x+1=0
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2x(x-1)=0 x²+4=4x (x-3)(x+1)=0 x²-3x+1=0
2x(x-1)=0 x²+4=4x (x-3)(x+1)=0 x²-3x+1=0

2x(x-1)=0 x²+4=4x (x-3)(x+1)=0 x²-3x+1=0