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1*x^3+1*x^2+1*x+1 = 0
2;11;2;3;4;2
1;8;12;5;6;-6
1*x^4+2*x^2+0*x^3+0*x-15 = 0
1*x^4-(2*x^2)+0*x^3+0*x+15 = 0
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