Mathematics
         
语言:中文    Language:English
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 (32-x)(20+5x) = 900 .
    Question type: Equation
    Solution:Original question:
     (32 x )(20 + 5 x ) = 900
    Remove the bracket on the left of the equation:
     Left side of the equation = 32(20 + 5 x ) x (20 + 5 x )
                                             = 32 × 20 + 32 × 5 x x (20 + 5 x )
                                             = 640 + 160 x x (20 + 5 x )
                                             = 640 + 160 x x × 20 x × 5 x
                                             = 640 + 140 x x × 5 x
    The equation is transformed into :
     640 + 140 x x × 5 x = 900

    After the equation is converted into a general formula, it is converted into:
    ( x - 2 )( x - 26 )=0
    From
        x - 2 = 0
        x - 26 = 0

    it is concluded that::
        x1=2
        x2=26
    
    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》



Your problem has not been solved here? Please go to the Hot Problems section!





  New addition:Lenders ToolBox module(Specific location:Math OP > Lenders ToolBox ),welcome。