计算:(2-5x)/6-x/3
x/x-3-5x/x^2-x-6计算
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算2(x^3)^2×x^3-(4x^3)^3+(-3x)^4×x^5
分式计算:x^5-4x^3+x+2/x^3+6x^2+12x+8(约分)
计算(x-2)(x-3)+2(x+6)(x-5)-3(x平方-7x+13)
计算x^2-5x+6/x^2-1/x^2+x/x-3
计算:3x²-[7x-(4x-3)-2x²]
计算:(3x+2)/5-(x-6)=x/3
计算:(x+2)/2x * (x^3 - 3x^2)/(x^2 + 5x + 6) * (x^2 + 2x - 3)/(
计算:-x+(2x-2)-(3x+5)
计算5x(2x² -3x+1)