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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 (1+0.156x)(1+0.185x)(1+0.192x) = x+1 .
    Question type: Equation
    Solution:Original question:
     (1 +
39
250
x )(1 +
37
200
x )(1 +
24
125
x ) = x + 1
    Remove the bracket on the left of the equation:
     Left side of the equation = 1(1 +
37
200
x )(1 +
24
125
x ) +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1 × 1(1 +
24
125
x ) + 1 ×
37
200
x (1 +
24
125
x ) +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1(1 +
24
125
x ) +
37
200
x (1 +
24
125
x ) +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1 × 1 + 1 ×
24
125
x +
37
200
x (1 +
24
125
x ) +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1 +
24
125
x +
37
200
x (1 +
24
125
x ) +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1 +
24
125
x +
37
200
x × 1 +
37
200
x ×
24
125
x +
39
250
x
                                             = 1 +
24
125
x +
37
200
x +
111
3125
x x +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1 +
377
1000
x +
111
3125
x x +
39
250
x (1 +
37
200
x )(1 +
24
125
x )
                                             = 1 +
377
1000
x +
111
3125
x x +
39
250
x × 1(1 +
24
125
x ) +
39
250
x
                                             = 1 +
377
1000
x +
111
3125
x x +
39
250
x (1 +
24
125
x ) +
1443
50000
x x
                                             = 1 +
377
1000
x +
111
3125
x x +
39
250
x × 1 +
39
250
x ×
24
125
                                             = 1 +
377
1000
x +
111
3125
x x +
39
250
x +
468
15625
x x +
1443
50000
                                             = 1 +
533
1000
x +
111
3125
x x +
468
15625
x x +
1443
50000
x x
                                             = 1 +
533
1000
x +
111
3125
x x +
468
15625
x x +
1443
50000
x x
                                             = 1 +
533
1000
x +
111
3125
x x +
468
15625
x x +
1443
50000
x x
    The equation is transformed into :
     1 +
533
1000
x +
111
3125
x x +
468
15625
x x +
1443
50000
x x = x + 1

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

    it is concluded that::
        x1=0

    Solutions that cannot be obtained by factorization:
        x2≈-21.031306 , keep 6 decimal places
        x3≈4.007311 , 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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