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On line Solution of Monovariate Equation：
    Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
    It supports equations that contain mathematical functions.
    Current location：Equations > Monovariate Equation > The history of univariate equation calculation > Answer

    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation -0.0002x3+0.0004x2+0.1261x+0.165 = 0 .
    Question type: Equation
    Solution:Original question:
      -
1
5000
 x × 3 +
1
2500
 x × 2 +
1261
10000
 x +
33
200
 = 0
     Left side of the equation = -
3
5000
 x +
1
1250
 x +
1261
10000
 x +
33
200
                                             =
1263
10000
 x +
33
200
    The equation is transformed into :
     
1263
10000
 x +
33
200
 = 0

    Transposition :
     
1263
10000
 x = 0 −
33
200

    Combine the items on the right of the equation:
     
1263
10000
 x = -
33
200

    The coefficient of the unknown number is reduced to 1 :
      x = -
33
200
 ÷
1263
10000
        = -
33
200
 ×
10000
1263
        = - 11 ×
50
421

    We obtained :
      x = -
550
421
    This is the solution of the equation.

    Convert the result to decimal form :
      x = - 1.306413



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