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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 -x*(x-1)*(x-2)/6+2*(x-1)*(x+1)*(x-2)-3*(x+1)*x*(x-2)/2 = 0 .
    Question type: Equation
    Solution:Original question:
      - x ( x 1)( x 2) ÷ 6 + 2( x 1)( x + 1)( x 2)3( x + 1) x ( x 2) = 0
     Left side of the equation = - x ( x 1)( x 2) ×
1
6
+ 2( x 1)( x + 1)( x 2)
3
2
( x + 1) x ( x 2)
    The equation is transformed into :
      - x ( x 1)( x 2) ×
1
6
+ 2( x 1)( x + 1)( x 2)
3
2
( x + 1) x ( x 2) = 0
    Remove the bracket on the left of the equation:
     Left side of the equation = - x x ( x 2) ×
1
6
+ x × 1( x 2) ×
1
6
+ 2( x 1)( x + 1)( x 2)
                                             = - x x ( x 2) ×
1
6
+ x ×
1
6
( x 2) + 2( x 1)( x + 1)( x 2)
3
2
                                             = - x x x ×
1
6
+ x x × 2 ×
1
6
+ x ×
1
6
( x 2) + 2
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
( x 2) + 2( x 1)
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x x ×
1
6
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x x ×
1
3
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
13
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
13
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
13
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
13
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
13
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
1
3
x
                                             = - x x x ×
1
6
+ x x ×
1
3
+ x ×
1
6
x
7
3
x

    After the equation is converted into a general formula, there is a common factor:
    ( x - 2 )
    From
        x - 2 = 0

    it is concluded that::
        x1=2

    Solutions that cannot be obtained by factorization:
        x2≈-1.162278 , keep 6 decimal places
        x3≈5.162278 , keep 6 decimal places
    
    There are 3 solution(s).


解程的详细方法请参阅:《方程的解法》



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