50*2X=X*(50-X)*10
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*2
用换元法解方程(x^2+5x)^2+10x^2+50x+24=0
2x-3分之1(x+1)=4x-(2x+50%)
30-3(3-X)=4X 3X+12*6=15X+12 4X-2(50-X)=20 12(X-13)=10(X+3) 1
X+30%X=52 X-10%x=27 20%x=24=40 2x-50%x=30
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
llim x→∞[(2X+10)^10*(x+9)^50]/(x^60+8x^50)
2x+5x+10(50-2x)=240怎么解方程快点
130%x+x=4.6 x÷50%=10 x/9-x/15=16%
解方程.(5x/x²+x-6)+(2x-5/x²-x-12)=7x-10/x²-6x+8