计算x^2-5x+6/x^2-1/x^2+x/x-3
x/x-3-5x/x^2-x-6计算
计算x^2-5x+6/x^2-1/x^2+x/x-3
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算:(x+1)(x-2)(x-3)(x-6)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
计算(x-2)(x-3)+2(x+6)(x-5)-3(x平方-7x+13)
计算:(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程
x(x²-1)+2x²(x+1)-3x(2x-5)计算
计算:(x+2)/2x * (x^3 - 3x^2)/(x^2 + 5x + 6) * (x^2 + 2x - 3)/(
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
计算:(x+2)/(x^2 - x - 6) + 2x/(x^2 - 3x) - x/(x^2 - 6x + 9)
计算:3x/x-5-2x/5-x