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    x^2+3x-0.3744=0
    x^2-21x+108=0
    4x^2-24x+35=0
    X^2-49 x+299
    X^2-49 x+293
    x²+x-96=0
    1200+30x+1200/x=3200
    2.5x^2+30x-12=0
    1-q^10/1-q^5=33
    x^0.78=2643.52
    (300-5x)(x-30)=1200
    (12-c)²-2×12=c²
    -5x²+1324x+21280=7200
    (280 -x)(76+5x)=7200
    (280 -x)(76+5x)
    x3=6
    4t^2+2.4t=2.2
    2^0.5+(2-x)^0.5=π/(3x)
    2^0.5+(2-x)^0.5=π/3x
    lnx=x-1

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