S^2+3S+0.96631=0
    50(1-0.3)(1+3x)×0.3(1－x)＝0
    2t^3+15t+7=-1
    0.74=（（x-sinx)^(5/3))/（2πx^(2/3))
    x÷（100+x）＝26.5
    2x-1大于3 2x-3大于3x
    2x大于8
    3x-1大于2x+1
    x^x>=x+3
    x^x>=x
    2>x+100
    （-9×2+12）
    120*X+180*X=10000
    80*x^2-3x+260≥0
    (100-10x)*(100+16x)≥10260
    (100-10x)*(100+16x)≥8000+1280x
     (3322.08*((1-1/(1+i)^20)/i)-905/32*((1-1/(1+i)^32)/i))*(1+i)^32 > 100000
    x-abs（x-1）＜ =3
    x-abs（x-1）＜=3
    -x*x+4*x-3<0

Home page << page1127 page1128 page1129 page1130 page1131 ... ... page1142page page1143page page1144page page1145page page1146page >> Last page 1275 pages in total