12-12x+4x^2=9
    (20+x)*x=476
    2x-1=0.6（3x+4）
    1.5×5x=0
    x^3+3x^2+2x+1=0
    (186+270)/31*x+248/31*(x+15)+109/31(x+30)=1372
    1.5×(5x+8)
    3/2=X+25/X+5
    x^7-x^6-55x^5+110x^4+428x^3-491x^2-441x+44=0
    670.3×（1+x）^14=785.3
    394.1×（1+x）^14=572.9
    (32+x)*3-(32-x)*4=10
    0.78x²+581.81x-13.21=0
    0.78x²+581.81x-13.14=0
    0.78x²+59x-13.14=0
    0.78x²+1.66x-13.14=0
    0.78x²+58.18x-13.14=0
    0.78x²+58.18x-13.22=0
    0.78x²+58.18x-13.21=0
    7.8x²+58.18x-13.21=0

Home page << page378 page379 page380 page381 page382 ... ... page384 page385 page386 page387 page388 >> Last page 31278 pages in total