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](/uploads/image/z/1857385-1-5.jpg?t=2x%28x-1%29%3D0+x%26%23178%3B%2B4%3D4x+%28x-3%29%28x%2B1%29%3D0+x%26%23178%3B-3x%2B1%3D0)
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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