411.52*x - 0.0535=0.4
    411.52*x - 0.0535=0.3
    5x²+30+13x=0
    9X^2-450X+5400=4536
    x(18-x)=80
    (20-2x)(8-2x)-x(8-2x)=56
    (30-x)(20-x)=551
    (37-25-x)(4+2x)=90
    1.95-2*x+0.5x*x=0
    2a^2-5a=10
    （8-t）2+t2=36
    （6-x）（8-x）×1/2=1/2×6×8
    (8-t)*(8-t)+t*t=36
    5x²-13x-6=0
    x²-13x+12=42
    x²-13x+12=0
    (x-50)*5(150-x)=4000
    (y-50)*5*(100-y)=4000
    （x+1）²-3（x+1）+2=0
    2（x+3）²=x（x+3）

Home page << page905 page906 page907 page908 page909 ... ... page911 page912 page913 page914 page915 >> Last page 31237 pages in total