3.141*35000*x*x*x-192-60x>=0
    3.141*35000x*x*x*x-192x-60>=0
    3.141*35000x*x*x*x-96x-60>=0
    2a*a*a-3a>-1
    (2-x)(x+3)<0
    (-2*(m+1))^2+12>0
    x×2800×(565+70x)≤19600000 565+70x≤2000
    x×2800×（565+70x)≤1960×10000 70x+565≤2000
    -41800+30000-4500+X-X10%/4>3000
    x^2x+1<0
    x（x-3）（2-x）（x+1）＞0
    （0.9964）^x≤0.01
    x0.07+0.51<0.07
    4x²-12x+9＞0
    2x-x²-3＞0
    x²-3x+5＞0
    4x²-12x+9＜0
    x²-2x+1＞0
    2x²-5x-3＜0
    2x-x²+3＜0

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