640x^5+2520x^2>2393680
    x(x+2)>x(3－x)+1
    x^2+6x+10>0
    x^2+6x+10>0
    x^2－14x+45≤0
    mx^2-mx-1＜0
    14－4x^2≥x
    3a＞5
    2*3(x+2)<5x+6
    x<2 x>0
    √x-x+12<0
    10x²-11x+3≥0
    abs(5x+1)>2-x
    （3-m)^2-4(-2*(-5-2m))>0
    (4x-8)^2-16x≤0
    xx-2x+1>0
    x（2x-1）≥0
    2x-1/x≥0
    x^2≤2
    X-1≥0

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