计算:x²-6x+9/9-x²除以2x-6/x²+3x
计算:x²-6x+9/9-x²除以2x-6/x²+3x
分式计算x²+2x/x²-6x+9÷x²-4/x²-3x
分式计算:x²+2x/x²-6x+9÷x²-4/x²-3x
计算(x²-6x+9/x²-9)÷(6-2x/x²+3x)
计算分式2x-4/x²+3x÷x-2/x²+6x+9
(x²-6x+9)÷x+3分之x²-9x+18,计算
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)
计算:(x+2)/(x^2 - x - 6) + 2x/(x^2 - 3x) - x/(x^2 - 6x + 9)
计算①x²-4/x²-4x+3÷x²+3x+2/x²-x②2x+6/4-4x+x
计算: (x+3)(x²-x-2)
计算 (x+3)(x²-x-2)