x+1/5x=60

30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1 x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x (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) 提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1 已知3x*x-x=1,求6x*x*x+7x*x-5x+2000 x+2/3x=60 x-3/5x=120 4x+18x=1 6/x+1=x-5/x^2+x X-5+8*X=7*X-2*X-1 5/x²+x-1/x²-x=0 (2x-1)/(x-1)(x-2)=(x-5)/(x-2)(x-3) x/2x^2-11x-21=(x+7)/x^2-1 y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1