-x^2+x+2<0
    -x^2-x+2<2
    2^x>x^4
    2^x
    16x-14/3>0
    1<4-x^<2
    -2x²+x+3≥0
    -10x^2+500x-2000≥0
    5*t*t>1.8
    x+x^3>0
    0x>21
    2x
    8m²+8m+8<0
    -8m²-8m-8<0
    100x<900
    2/(x+1)>1
    (108*1.2+4)*11.25*1.15*1.15x/100>(120*1.2+4)*11.25*1.15x/100
    (103*1.2+4)*11.25*1.15*1.15*x/100>(120*1.2+4)*11.25*1.15*x/100
    (103*1.2+4)*11.25*1.15*1.15*x/100>(108*1.2+4)*11.25*1.15*x/100
    133*11.25*1.15*1.15*x/100>148*11.25*1.15*x/100

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