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8*x^3+36*x^2+24*x+0*x^4+0 = 0
(0.8)^(3)
2*x^4-3*x^3-6*x+3;2*x^2-x+2
(0.8)^(5)
8*x^3+36*x^2+24*x+0*x^4+0 = 0
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