e^(-3.14x/(sqrt(1-x^2)))=0.163
    3490000/x^2-366113/x+8255.58=0
    (2/x)+1/(x+6)=1/(x+4)
    (2s-2)(s^2+1.5s-1)=(s^2-2s+5)(2s+1.5)
    (s^2+6s+10)+(s-1)(2s+6)=0
    x^4-3x^3-11x^2+15x+34=0
    x^3-5*x^2-x+17=0
    x^3-5x^2-x-17=0
    x^3-5x^2-x^-17=0
    x^4-11x^3+31x^2-9x=0
    0.008＝40X－9X²
    567=（（0.021*x^1.85+1603）^0.5）*x^0.84
    （25.851+x）×2.55＝51.702+69.853-x
    （25.851+x）×2.35＝51.702+69.853-x
    （25.851+x）×2.15＝51.702+69.853-x
    （25.851+x）×1.95＝51.702+69.853-x
    （25.851+x）×1.75＝51.702+69.853-x
    （25.851+x）×1.55＝51.702+69.853-x
    （1+x)*(1+2%)=1+2.5%
    x+0.75x-13625.8=0

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