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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 1.21 = 0.785（x*x-1.65*1.65）*0.4226-（16*0.002）/（2*（x+1.65）） .
    Question type: Equation
    Solution:Original question:
     
121
100
 =
157
200
( x x −
33
20
 ×
33
20
) ×
2113
5000
 − (16 ×
1
500
) ÷ (2( x +
33
20
))
     Multiply both sides of the equation by:(2( x +
33
20
))
     
121
100
(2( x +
33
20
)) =
157
200
( x x −
33
20
 ×
33
20
) ×
2113
5000
(2( x +
33
20
)) − (16 ×
1
500
)
    Remove a bracket on the left of the equation:：
     
121
100
 × 2( x +
33
20
) =
157
200
( x x −
33
20
 ×
33
20
) ×
2113
5000
(2( x +
33
20
)) − (16 ×
1
500
)
    Remove a bracket on the right of the equation:：
     
121
100
 × 2( x +
33
20
) =
157
200
 x x ×
2113
5000
(2( x +
33
20
)) −
157
200
 ×
33
20
 ×
33
20
 ×
2113
5000
(2( x +
33
20
)) − (16 ×
1
500
)
    The equation is reduced to :
     
121
50
( x +
33
20
) =
331741
1000000
 x x (2( x +
33
20
)) −
361265949
400000000
(2( x +
33
20
)) − (16 ×
1
500
)
    Remove a bracket on the left of the equation:
     
121
50
 x +
121
50
 ×
33
20
 =
331741
1000000
 x x (2( x +
33
20
)) −
361265949
400000000
(2( x +
33
20
)) − (16 ×
1
500
)
    Remove a bracket on the right of the equation:：
     
121
50
 x +
121
50
 ×
33
20
 =
331741
1000000
 x x × 2( x +
33
20
) −
361265949
400000000
(2( x +
33
20
)) − (16 ×
1
500
)
    The equation is reduced to :
     
121
50
 x +
3993
1000
 =
331741
500000
 x x ( x +
33
20
) −
361265949
400000000
(2( x +
33
20
)) − (16 ×
1
500
)
    Remove a bracket on the right of the equation:：
     
121
50
 x +
3993
1000
 =
331741
500000
 x x x +
331741
500000
 x x ×
33
20
 −
361265949
400000000
(2( x +
33
20
)) − (16 ×
1
500
)
    The equation is reduced to :
     
121
50
 x +
3993
1000
 =
331741
500000
 x x x +
10947453
10000000
 x x −
361265949
400000000
(2( x +
33
20
)) − (16 ×
1
500
)
    Remove a bracket on the right of the equation:：
     
121
50
 x +
3993
1000
 =
331741
500000
 x x x +
10947453
10000000
 x x −
361265949
400000000
 × 2( x +
33
20
) − (16 ×
1
500
)
    The equation is reduced to :
     
121
50
 x +
3993
1000
 =
331741
500000
 x x x +
10947453
10000000
 x x −
361265949
200000000
( x +
33
20
) − (16 ×
1
500
)
    Remove a bracket on the right of the equation:：
     
121
50
 x +
3993
1000
 =
331741
500000
 x x x +
10947453
10000000
 x x −
361265949
200000000
 x −
361265949
200000000
 ×
33
20
 − (16 ×
1
500
)

    The solution of the equation:
        x1≈-2.512772 , keep 6 decimal places
        x2≈2.526158 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》


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