x^7÷x^2×x^3-2(x^2)^3×x^2+(x^2)^6÷(-x)^4+[(x^3÷x^2÷x)^0+1]^2
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
先化简,再求值:[x+2/(x^2-2x)-(x-1)/(x^2-4x+4)]÷2x-8/(x^3-2x^2)
已知(x-根号2+1)(x-2)=0,求代数式[(x-1)/(x-3)-(x-4)/x]÷(x^2+x-6)/(x^2+
先化简再求值:(x+2/x²-2x - x-1/x²-4x+4)÷ x-4/x,其中x=3/2
x-2/x-1÷(x+1-3/x-1)
((x²-5x+6)/(12-7x+x²))²÷((x²+3x+2)/(x