x-1/5x-(1/5x+15)=1/2x
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(x+1)(x+2)(x+5)(x+7)+15 因式分解
因式分解 (x+1)(x+2)(x+5)(x+7)+15
6/x+1=x-5/x^2+x
X-5+8*X=7*X-2*X-1