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 (X-60)(20+500-5x) = 2400 .
    Question type: Equation
    Solution:Original question:
     ( X 60)(20 + 5005 X ) = 2400
    Remove the bracket on the left of the equation:
     Left side of the equation = X (20 + 5005 X )60(20 + 5005 X )
                                             = X × 20 + X × 500 X × 5 X 60(20 + 5005 X )
                                             = 520 X X × 5 X 60(20 + 5005 X )
                                             = 520 X X × 5 X 60 × 2060 × 500 + 60 × 5 X
                                             = 520 X X × 5 X 120030000 + 300 X
                                             = 820 X X × 5 X 31200
    The equation is transformed into :
     820 X X × 5 X 31200 = 2400

    After the equation is converted into a general formula, it is converted into:
    ( X - 80 )( X - 84 )=0
    From
        X - 80 = 0
        X - 84 = 0

    it is concluded that::
        X1=80
        X2=84
    
    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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