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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 (s+2)(s+4)(s+5)(s+8) = 0 .
    Question type: Equation
    Solution:Original question:
     ( s + 2)( s + 4)( s + 5)( s + 8) = 0
    Remove the bracket on the left of the equation:
     Left side of the equation = s ( s + 4)( s + 5)( s + 8) + 2( s + 4)( s + 5)( s + 8)
                                             = s s ( s + 5)( s + 8) + s × 4( s + 5)( s + 8) + 2( s + 4)( s + 5)( s + 8)
                                             = s s s ( s + 8) + s s × 5( s + 8) + s × 4( s + 5)( s + 8)
                                             = s s s s + s s s × 8 + s s × 5( s + 8)
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s
                                             = s s s s + s s s × 8 + s s × 5 s

    After the equation is converted into a general formula, it is converted into:
    ( s + 8 )( s + 5 )( s + 4 )( s + 2 )=0
    From
        s + 8 = 0
        s + 5 = 0
        s + 4 = 0
        s + 2 = 0

    it is concluded that::
        s1=-8
        s2=-5
        s3=-4
        s4=-2
    
    There are 4 solution(s).


解程的详细方法请参阅:《方程的解法》



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