Mathematics
         
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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 100(1+x)(1+x) = 121 .
    Question type: Equation
    Solution:Original question:
     100(1 + x )(1 + x ) = 121
    Remove the bracket on the left of the equation:
     Left side of the equation = 100 × 1(1 + x ) + 100 x (1 + x )
                                             = 100(1 + x ) + 100 x (1 + x )
                                             = 100 × 1 + 100 x + 100 x (1 + x )
                                             = 100 + 100 x + 100 x (1 + x )
                                             = 100 + 100 x + 100 x × 1 + 100 x x
                                             = 100 + 100 x + 100 x + 100 x x
                                             = 100 + 200 x + 100 x x
    The equation is transformed into :
     100 + 200 x + 100 x x = 121

    After the equation is converted into a general formula, it is converted into:
    ( 10x + 21 )( 10x - 1 )=0
    From
        10x + 21 = 0
        10x - 1 = 0

    it is concluded that::
        x1=-
21
10
        x2=
1
10
    
    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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