25+x＝33.13+150.556-x
    x^4-12x^3+45x^2-54x+16=0
    x^4-4x^3-3x^2+14x+8=0
    s^2(s+6)=(s+4)(3s^2+12s)
    s(s+6)=3*(s+4)^2
    (x+1)^4-(2+2*2+2)(x+1)^3+[(2+2)(2+2)-1](x+1)^2+(2+2)(x+1)-2*2=0
    s(s-3)=(s+1)(2s-3)
    3s^2*(s^3+4s^2+5s+2)=s^3(3s^2+8s+5)
    s^3+4s^2+5s+2=0
    30*（390-a）-9a=7410
    1.2a+0.88（80-a）=80
    2X²-3X-1＝0
     x+2x+(x+2x-15)=65
    3x+2x+(x+2x-15)=65
    （175/9）x^4+20x^3-374x^2+1620x-2025=0
    (X-60)(220-2X)＝1200
    (X-60)(220-2X)＝1050
    (X-60)*(200-2X)＝1030
    112.8=（（0.021*x^1.85+1603）^0.5）*x^0.84
    （26.326+x）×2.55＝71.278+52.652-x

Home page << page121 page122 page123 page124 page125 ... ... page127 page128 page129 page130 page131 >> Last page 31237 pages in total