2/5 x+(1/3x-12)+24=x
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
2/5 x+(1/3x-12)+24=x
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程1/x(x+2)+1/(x+2)(x+4)+……+1/(x+8)(x-10)=5/24
5X(X-X)=3(X+X)这个方程帮忙解一下
2x(x-1)+2=x(x+1)
.2x(3x+1)=9x+3(x+8)(x+1)=12
(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
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