4x=16+4/5x
    0.5*（39.13+13.7*x+38.13)*x*(2*38.13+13.7x+39.13)*x/3*(39.13+13.7x+38.13)+20.61x=0.5*(70.25+45.65*x+70.25)*x*(2*70.25+45.65x+70.25)*x/3*(70.25+45.65x+70.25)
    0.5*（39.13+13.7x+38.13)*x*(2*38.13+13.7x+39.13)*x/3*(39.13+13.7x+38.13)+20.61x=0.5*(70.25+45.65x+70.25)*x*(2*70.25+45.65x+70.25)*x/3*(70.25+45.65x+70.25)
    0.5*（39.13+13.7x+38.13)*x*(2*38.13+13.7x+39.13)*x/3*(39.13+13.7x+38.13)+20.61x=0.5*(70.25+45.65x+70.25)*x*(2*70.25+45.65x+70.25)*x/3(70.25+45.65x+70.25)
    0.5*（39.13+13.7x+38.13)*x*(2*38.13+13.7x+39.13)*x/3*(39.13+13.7x+38.13)+20.61x=0.5*(70.25+45.65x+70.25)*x*(2*70.25+45.65x+70.25)*x/3(70.25+45.65x+70.25)
    0.5*（76.26+13.7x)*x*(114.39x+13.7x^2)/(114.39+41.1x)+20.61x=0.5*(140.5+45.65x)*x*(210.75x+45.65x^2)/(210.75+136.95x)
    0.5*（76.26x+13.7x^2)*(114.39x+13.7x^2)/(114.39+41.1x)+20.61x=0.5*(140.5x+45.65x^2)*(210.75x+45.65x^2)/(210.75+136.95x)
    0.5*（76.26x+13.7x^2)*(114.39x+13.7x^2)/(114.39+41.1x)+20.6x=0.5*(140.5x+45.65x^2)(210.75x+45.65x^2)/(210.75+136.95)x
    0.5*（76.26x+13.7x^2)*(114.39x+13.7x^2)/(114.39+41.1x)+20.6x-0.5*(140.5x+45.65x^2)(210.75x+45.65x^2)/(210.75+136.95)x
    n（n-1）=111
    （x-16）（170-5x）=280
    20t+5t^2=100
    (10+x-8)(200-20x)=640
    -6/x=-1/2x+2
    2xxx+6xx-18x-44=0
    3a^4-2√3a^3-a^2+2√3a-1=0
    （3x-1)(2x+1)=6x
    2x+1=5
    3xx+300x+5000
    15x＋x*x=100

Home page << page1711 page1712 page1713 page1714 page1715 ... ... page1717 page1718 page1719 page1720 page1721 >> Last page 31249 pages in total