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current location:Solving equations online > On line Solution of Monovariate Equation > The history of univariate equation calculation
    x3+5x+6
    0.5×6.28×(55×12+90x)+3.14×0.8×0.7×(500+6×(16×19.8+21.8x)÷(16+x)×(13+x))-7027.78-10.053x
    6.06x^2+100x-10000=0
    6.06x+100x-10000=0
    0.5×6.28×(55×12+90x)+3.14×0.8×0.7×(500+6×(16×19.8+21.8x)÷(16+x))×(13+x)-7027.78-10.053x
    (2x^2+x-10)^2=(2x^2-2x+5)(2x^2+2x+20)
    (2x^2+x-10)^2=(2x^2-2x+5)(2x^2+2x+20)
    arctanx+arctan0.25x=139
    arctanx+arctan0.25x=41
    arctanx+arctan0.25x=-41
    arctanx+arctan0.25x=41
    arctanx+arctan0.25x=51
    x^5+10x^3+20x-4=0
    x + 1/x = 1
    12=(x+5.1)*(12/(10.2+x)+0.0116)+5.1*12/(10.2+x)
    12=(x+5.1)*(12/(x+10.2)+11.64)+5.1*12/(10.2+x)
    sinx/x=0.9
    sinx/x=0.9
    sinx/x=0.99893697798
    sin(a/2)=0.99893697798

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