6x
    a^2-150a=0
    114x+514=1919+810
    xxx－6x+x－1
    9x-3x-4=0
    b^3-b=24
    r²＋(r＋2)²＝16
    y^2+9y-20=0
    y2+9y-20=0
    (13x^2-34x+24)/(2x-1)
    (13x^2-34x+24)/(2x-1)
    1-2＾x
    sinx^2=0
    sinx=0
    30t-3.85t^2=0
    0.18499*x^2-2989.657-14.2367*exp(1.46307*0.00048398*1.414/2*x) = 0
    0.13338*x^2-2989.657-14.2367*exp(1.38218*0.00048398*1.414/2*x) = 0
    0.09247*x^2-2989.657-14.2367*exp(1.30977*0.00048398*1.414/2*x) = 0
    0.06066*x^2-2989.657-14.2367*exp(1.24456*0.00048398*1.414/2*x) = 0
    0.03665*x^2-2989.657-14.2367*exp(1.18554*0.00048398*1.414/2*x) = 0

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