X ^ 2-x + 2< 0
    -3x^2+4x<0
    e(-12)*1.8
    e(-7)*1.7
    e(-5)*6.4
    e(-0.5)*6.4
    e(-7) *1.7
    e(-7)
    6.4*e(-0.5)
    1.1*e(-11)
    3.3/(75+25)*25=x
    3.3/(75+25)25=x
    3.3/(75+x)x=1.248
    3.3/(75+x)x=1.28
    3.3/(75+x)x=1.25
    0.13x+x = 13532
    (10-2*x)^2-4(2*x^2-4*x-2)>0
    (10-2*x)^2
    8y+y=3.6
    4*(k+1)^2-4*k*(k-1)

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