0.4x-1/0.5-5-x/2
0.4x-1/0.5-5-x/2
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
1、0.3X-0.4X=0.5 2、5X-2.5X+3.5X=-18 3、X-2/5X=-3+6
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
160乘25%-1.3x=17.9 x/5-x/6=0.4 3(x+2)=40+11 0.3/0.5=x+1/2x-1
(5x+1)X(6x+2)
5x(3x-2)-(x+1)
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13
1/(x+3)-(x-2)/(x^2-5x+6)