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[ 1/1 Equation]
    Work: Find the solution of equation (9-x)^55(10-x)^66(12-x)^77÷(7-x)^30(8-x)^40 = 0 .
    Question type: Equation
    Solution:
    After the equation is converted into a general formula, it is converted into:
    ( x - 8 )( x - 8 )( x - 9 )( 1x - 10 )( 1x - 10 )( x - 12 )=0
    From
        x - 8 = 0
        x - 8 = 0
        x - 9 = 0
        1x - 10 = 0
        1x - 10 = 0
        x - 12 = 0
    it is concluded that:：
        x₁=8
        x₂=8
        x₃=9
        x₄=10
        x₅=10
        x₆=12    
    There are 6 solution(s).

解程的详细方法请参阅：《方程的解法》

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