(s+2)(s^2+6s+25)+s(s^2+6s+25)+s(s+2)(2s+6)=0
    a^2=16a+64
    y*(0.019+y)/[(0.981-y)*(0.019-y)]=0.2826
    2/x+1/(x+20)=1/(x+2)
    x*x/(1-x)=51.42
    s^2(s+20)=(s+2)(2s(s+20)+s^2)
    2x^2+46x+60=0
    2a+3=0
    2x+5=6
    1.5x²+14＝10x
    1.5x²+14＝10x
    0.5x²+14＝10x
    10-5（2x-1）=15（x+1）
    10*a-10/a=48
    10*a-10/a=15
    10*a-10/a=10
    12.3c=（3.4+c）×7.93
    12.3c=（3.4+c）×7.92
    12.3c=（3.4+c）×7.92
    12.3c=（3.4+c）×7.92

Home page << page192 page193 page194 page195 page196 ... ... page198 page199 page200 page201 page202 >> Last page 31306 pages in total