x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
x+2/x+3-x+1/x+2=x+8/x+9-x+7/x+8
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
X-2分之X=X-5分之X-4怎么解?还有X减3分之X等于X减1分之X+1
x(2x-1)=-3x(x+1)+5x²+3
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
(2x-1)/(x-1)(x-2)=(x-5)/(x-2)(x-3) x/2x^2-11x-21=(x+7)/x^2-1
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
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
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
(3-x)/(1-x)-(5-x)/(7-x)+(x^2-x)/(x^2-8x+7)=1
解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7)