x-120+200=(1+1/5)x
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
3/x-1=4/x 6/x+1=x+5/x(x+1)
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
x-120+200=(1+1/5)x
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28
提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1
(2x-2)(x-1)=0 x(x-5)=5x-10