x^3-4x-6= 0
    x^3-4x-8= 0
    x^3-4x-1= 0
    x^3-4x-2= 0
    x/（x+10%）= 131.75/357.75
    x^3-6x-3 = 0
     x:x+10% = 131.75:357.75
    x^3-4x-3 = 0
    x^3-5x-3 = 0
    x^3-5x+3= 0
    x^3-5x-3 = 0
    x^3+5*x-3=0
    x^3+5*x-3=0
    93.6%X×20-6.4%X×30=16800
    sqrt3÷2x(4-x)=sqrt3÷4×16
    X^2-4X+8=0
    X一2[X一4（X一1）]一8=0
    5-3（y一1/3）=3
    2（10一0.5X）=一（3X十4
    3一（5一X）=X十2

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