计算(x^(2n)+x^n+1)(x^(3n)-x^(2n)+1)

计算(x^(2n)+x^n+1)(x^(3n)-x^(2n)+1) 计算(-x)^2n十1.(-x)^n+1 计算：(x^n)^n*36x^n 计算：(x^n)^n*36x^n x^(n)*x^(n+1)+x^(2n)*x 已知n为正整数,计算x×（-x）^2n+(-x)^2n+1 要过程 计算：（x^3)^n÷x^2n÷x^n-1 计算:1/(x-1)+1/(x-1)(x-2)+1/(x-2)(x-3)+.+1/(x-n)(x-n-1) f(x)=1*x^0+2*x^1+.+n*x^(n-1)+.怎么计算? 计算x^3n/(x^2-1)-x^2n/(x^n+1)-1/(x^n-1)+1/(x^n+1) 计算x^n·x^n+1+x^n+1·x^n+2+(-x)^3·(-x)^2n-4急在线等速度Rt f(x)=e^x-x 求证(1/n)^n+(2/n)^n+...+(n/n)^n 计算【-2（-x^n-1）】^3 若(x^2+1/x)^n(n∈N+,n 因式分解：(x^n+1)+(2x^n)+(x^n-1) x^n+1-2x^n+x^n-1因式分解 x^n-1-2x^n+x^n-1因式分解 分解因式x^n-x^(n-1)+x^(n-2)