Mathematics
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current location:Mathematical operation > History of Inequality Computation
    -2000+[500/(1+r)]+[700/(1+r)^2]+[2000/(1+r)^3]>-10000+[8000/(1+r)]+[2500/(1+r)^2]+[2000/(1+r)^3]
    -2000+[500/(1+r)]+[700/(1+r)^2]+[2000/(1+r)^3]>-10000+[800/(1+r)]+[2500/(1+r)^2]+[2000/(1+r)^3]
    -2000+500/(1+r)+700/(1+r)^2+2000/(1+r)^3>-10000+8000/(1+r)+2500/(1+r)^2+2000/(1+r)^3
    500/(1+r)+700/(1+r)^2+2000/(1+r)^3-2000>8000/(1+r)+2500/(1+r)^2+2000/(1+r)^3-10000
    -2000+500(1+r)^-1+700(1+r)^-2+2000(1+r)^-3>-10000+8000(1+r)^-1+2500(1+r)^-2+2000(1+r)^-3
    -2000+500/(1+x)+700/((1+x)^2)+(2000/(1+x)^3)<-10000+8000/(1+x)+2500/((1+x)^2)+(2000/(1+x)^3)
    -2000+500/(1+x)+700/((1+x)^2)+(2000/(1+x)^3)>-10000+8000/(1+x)+2500/((1+x)^2)+(2000/(1+x)^3)
    -2000+500/(1+x)+700/((1+x)^2)+(2000/(1+x)^3)>-10000+800/(1+x)+2500/((1+x)^2)+(2000/(1+x)^3)
    -2000+500/(1+r)+700/(1+r)^2 +2000/(1+r)^3 ≥-10000+8000/(1+r)+2500/(1+r)^2 +2000/〖(1+r)〗^3
    (-2000+500/(1+r)+700/(1+r)^2+2000/(1+r)^3)>(-10000+8000/(1+r)+2500/(1+r)^2+2000/(1+r)^3)
    (-2000+500/(1+r)+700/(1+r)^2+2000/(1+r)^3)>(-10000+800/(1+r)+2500/(1+r)^2+2000/(1+r)^3)
    -2000+500/(1+r)+700/(1+r)^2+2000/(1+r)^3>-10000+800/(1+r)+2500/(1+r)^2+2000/(1+r)^3
    -2000+500/(1+r)+700/(1+r)^2>-10000+800/(1+r)+2500/(1+r)^2
    80x^2-75x-18>0
    -2000 + 500/(1+r) + 700/(1+r)^2 + 2000/(1+r)^3>-10000 + 8000/(1+r) + 2500/(1+r)^2 + 2000/(1+r)^3
    -2000+500/(1+r)+700/(1+r)^2+2000/(1+r)^3>-10000+8000/(1+r)+2500/(1+r)^2+2000/(1+r)^3
    -2000+500/(1+r)+700/(1+r)^2+2000/(1+r)^3>-10000+8000/(1+r)+2500/(1+r)^2+2000/(1+r)^3
    x^2+11x-200>0
    4a≥16a^2-128a+196
    4a≥9a^2-72a+144

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