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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+20.7)（x+20.7） = 778.41 .
    Question type: Equation
    Solution:Original question:
     ( x +
207
10
)( x +
207
10
) =
77841
100
    Remove the bracket on the left of the equation:
     Left side of the equation = x ( x +
207
10
) +
207
10
( x +
207
10
)
                                             = x x + x ×
207
10
 +
207
10
( x +
207
10
)
                                             = x x +
207
10
 x +
207
10
 x +
207
10
 ×
207
10
                                             = x x +
207
10
 x +
207
10
 x +
42849
100
                                             = x x +
207
5
 x +
42849
100
    The equation is transformed into :
      x x +
207
5
 x +
42849
100
 =
77841
100

    After the equation is converted into a general formula, it is converted into:
    ( 5x + 243 )( 5x - 36 )=0
    From
        5x + 243 = 0
        5x - 36 = 0
    it is concluded that:：
        x1=-
243
5
        x2=
36
5
    
    There are 2 solution(s).

解一元二次方程的详细方法请参阅：《一元二次方程的解法》


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