x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x)
x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x)
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
X²-6x+9 x²-9 x+3
6x+(2x²-3x)-(x²-1)
化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
求化简:(x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)
分式计算x²+2x/x²-6x+9÷x²-4/x²-3x
x²+2x/x²-6x+9÷x²-4/x²-3x ,
分式计算:x²+2x/x²-6x+9÷x²-4/x²-3x