13.8×200×x×(400-x÷2)＝145000000
    x^2－920x＋1050725＝0
    X∧2－920X＋1050725＝0
    x/(sqrt(1+3)*sqrt(1+4*3)*sqrt(1+0.75))=1
    x^2-11.9x+35.3=0
    X(6-X)=5
    （30-Y)(72+3Y)=2160
    80（1+x）（1+x）=72
    3/4x^2+41/25x-4=0
    (58-x)/ln((90-x)/32)=46.3
    46.3*lnx-x=128.5
     1/(1+x²)
    12x²+10x-250＝0
    x-1824=3.5539x^(2/3)
    x-932=1.1363x^(2/3)
    720*（0.5a+400）÷560+50a÷60=1.5a+400
    x^2+x-600=0
    1981a+535*（7610-a）=7610*912
    -13/36x^2+23/4x-175/18=8
    √2x=1

Home page << page118 page119 page120 page121 page122 ... ... page124 page125 page126 page127 page128 >> Last page 31306 pages in total