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 (10+x)(280-10x) = 3120 .
    Question type: Equation
    Solution:Original question:
     (10 + x )(28010 x ) = 3120
    Remove the bracket on the left of the equation:
     Left side of the equation = 10(28010 x ) + x (28010 x )
                                             = 10 × 28010 × 10 x + x (28010 x )
                                             = 2800100 x + x (28010 x )
                                             = 2800100 x + x × 280 x × 10 x
                                             = 2800 + 180 x x × 10 x
    The equation is transformed into :
     2800 + 180 x x × 10 x = 3120

    After the equation is converted into a general formula, it is converted into:
    ( x - 2 )( x - 16 )=0
    From
        x - 2 = 0
        x - 16 = 0

    it is concluded that::
        x1=2
        x2=16
    
    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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