搜狗做题网解方程 x^4 -2x^3 +5x^2 -10x +5 =0
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解方程 x^4 -2x^3 +5x^2 -10x +5 =0
按费拉里公式,原方程可拆分为两个方程
2x²+.55405383961193x+9.0521839270015=0
2x²-4.55405383961193x+2.2094115808167=0
X1= 0.70089820882972
X2= 1.57612871097624
X3= -0.138513459902982-2.12294747578136i
X4= -0.138513459902982+2.12294747578136i
o(∩_∩)o
2x²+.55405383961193x+9.0521839270015=0
2x²-4.55405383961193x+2.2094115808167=0
X1= 0.70089820882972
X2= 1.57612871097624
X3= -0.138513459902982-2.12294747578136i
X4= -0.138513459902982+2.12294747578136i
o(∩_∩)o
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