(6x^2n-24)/[x^(2n+3)+6x^(n+3)+9x^3]×(x^n+3)/(x^n-2)÷(3x^n+6)/[x^(n+2)+3x^2]哪位大虾会的= =(6x^2n-24)/[x^(2n+3)+6x^(n+3)+9x^3]×(x^n+3)/(x^n-2)÷(3x^n+6)/[x^(n+2)+3x^2]不知道哪根葱能出出这么令人吐血的题目!

已知集合P={x|x=2n,n∈N^+},集合Q={x|x=3n,n∈N*}.则P∩Q等于多少?,A,{x|x=n,n∈N*}B.{x|x=5n,n∈N*}C,{x|x=12n,n∈N*}D,{x|x=6n,n∈N*} (6x^2n-24)/[x^(2n+3)+6x^(n+3)+9x^3]×(x^n+3)/(x^n-2)÷(3x^n+6)/[x^(n+2)+3x^2]哪位大虾会的= =(6x^2n-24)/[x^(2n+3)+6x^(n+3)+9x^3]×(x^n+3)/(x^n-2)÷(3x^n+6)/[x^(n+2)+3x^2]不知道哪根葱能出出这么令人吐血的题目! x^2n-3x^n 4x^n+2-9x^n+6x^n-1-x^n-24x^(n+2)-9x^n+6x^(n-1)-x^(n-2),n是整数且大于2 约分(x^n+2)+(x^n+1)-6x^n/(2x^n+1)+5x^n-(3x^n-1) x^n*x^n+1*(-x)^2n*x+(-x)^2n+3x^2n-2*x (-x)^3x^n-1+x^2n(-x)^3 已知x^3n=2 ,求 x^6n+x^2n*x^10n 的值. 若x^3n=2,试求x^6n+x^4n乘以x^5n的值 x的^3n=2,求x^6n+x^4n*x^5n的值 因式分解4x^(n+2)-9x^n+6x^(n-1)-x^(n-2) 因式分解4x^n+2-9x^n+6x^n-1-x^n-2 (4x^n-2x^n-1-3x^n+2)÷（-5x^n-1) 计算(x^(2n)+x^n+1)(x^(3n)-x^(2n)+1) x^n-1(3x^n+4x^n+1-5x^n+2) 计算:(2x^3n)(2x^n)^3=2x^6n 若x^2n=4,求x^6n和(3x^3n)^2 f(x)=e^x-x 求证(1/n)^n+(2/n)^n+...+(n/n)^n