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sqrt((-x^3+5*x^2-8*x+4)/(x+2))=0 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
     _______________________    
    /    3      2               
   /  - x  + 5*x  - 8*x + 4     
  /   ---------------------  = 0
\/            x + 2             
$$\sqrt{\frac{\left(- 8 x + \left(- x^{3} + 5 x^{2}\right)\right) + 4}{x + 2}} = 0$$
Gráfica
Respuesta rápida [src]
x1 = 1
$$x_{1} = 1$$
                                  ___
     11           1           I*\/ 3 
x2 = -- - ----------------- - -------
     6      /          ___\      6   
            |  1   I*\/ 3 |          
          3*|- - + -------|          
            \  2      2   /          
$$x_{2} = \frac{11}{6} - \frac{\sqrt{3} i}{6} - \frac{1}{3 \left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right)}$$
                                  ___
     11           1           I*\/ 3 
x3 = -- - ----------------- + -------
     6      /          ___\      6   
            |  1   I*\/ 3 |          
          3*|- - - -------|          
            \  2      2   /          
$$x_{3} = \frac{11}{6} - \frac{1}{3 \left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right)} + \frac{\sqrt{3} i}{6}$$
x3 = 11/6 - 1/(3*(-1/2 - sqrt(3)*i/2)) + sqrt(3)*i/6
Respuesta numérica [src]
x1 = 2.00000000000035 - 3.2208732954485e-13*i
x2 = 1.99999999999991
x3 = 2.0
x4 = 1.99999999999989
x5 = 2.00000000000007 + 5.22637431220354e-14*i
x6 = 2.0 + 1.20737378136235e-14*i
x7 = 1.99999999999999 - 7.17125351947982e-14*i
x8 = 2.0 - 1.22089483760591e-13*i
x9 = 2.00000000000002 + 2.61469966972987e-14*i
x10 = 2.00000000000013
x11 = 2.00000000000005 + 2.76104279038204e-14*i
x12 = 2.0
x13 = 2.0 + 9.19143464024159e-14*i
x14 = 1.99999999999991
x15 = 1.99999999999989
x16 = 2.00000000000003 + 4.14156236226538e-17*i
x17 = 2.0
x18 = 1.99999999999982 - 2.32723293868745e-15*i
x19 = 2.0 + 2.31651109298801e-13*i
x20 = 2.00000000000006
x21 = 2.00000000000009 + 2.58896913426606e-14*i
x22 = 2.0 - 4.56709557733995e-13*i
x23 = 1.99999999999995 + 4.64978920363924e-16*i
x24 = 2.00000000000085 + 1.23702701381333e-12*i
x25 = 1.99999999999991 - 2.62749702707635e-14*i
x26 = 2.00000000000001
x27 = 1.99999999999991
x28 = 1.99999999999998
x29 = 2.00000000000002
x30 = 2.0 + 7.04804548122729e-16*i
x31 = 2.00000000000003
x32 = 1.99999999999999 - 1.17620413855341e-15*i
x33 = 1.99999999999991
x34 = 2.0 + 1.2742665640492e-13*i
x35 = 1.99999999999996 + 7.65062949464507e-16*i
x36 = 1.99999999999989
x37 = 2.0
x38 = 2.00000000000001 + 1.44267991155452e-14*i
x39 = 2.0
x40 = 1.99999999999997 + 1.64385954894837e-14*i
x41 = 2.0000000000001 - 5.22622772558264e-14*i
x42 = 2.0
x43 = 1.99999999999997 - 1.5366592784169e-14*i
x44 = 2.00000000000013
x45 = 1.99999999999997 - 1.80906195522114e-16*i
x46 = 2.0 + 5.4575152250853e-15*i
x47 = 1.99999999999991
x47 = 1.99999999999991