Mathematics
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    x-3.5<-4
    2.5x>10
    3/6
    3/5
    3*5
    1+1
    2x-1<0
    7x^2-1740x+33600=0
    7x^2-2000x+33600=0
    78.59
    198.51/3%[1-1/(1+3%)n]
    198.51/3%[1-1/(1+3%)42]
    198.51/3%(1-1/(1+3%)
    30^(2)-x^(2)=26^(2)-(28-x)^(2)
    -x^(2)-4x+5
    n(n+1)/1
    n(n+1)
    (2x+2)^(2)+1
    √1
    √1+2

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