Mathematics
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    3x^2-x-2≥0
    3x-11x+6>0
    3x^2-11x+6>0
    2a^2+a<1
    2a^2+a+1>0
    5x + 7 > 6x
    2×absx≤1
    x^2-4>0
    (2x²-2X+5)÷(x²-x+1)>0
    4x^2-4x+6>0
    -2x^2-4x+6<0
    x^2- 8x+ 12> 0
    x^2-5x+4> 0
    3x^2 <-2x
    x-5x+4>0
    3x^2<-2x
    3x2 <-2x
    x+sqrt(x)-12小于<0
    3*6*6-8*6-4a<0
    -x^2+130x-3000>1200

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