(-x)^3x^n-1+x^2n(-x)^3

(-x)^3x^n-1+x^2n(-x)^3 x^n*x^n+1*(-x)^2n*x+(-x)^2n+3x^2n-2*x x^(n)*x^(n+1)+x^(2n)*x (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) C语言 f(x)=1+x+x^2/2!+x^3/3!+...+x^n/n!直到|x^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) f(x)=e^x-x 求证(1/n)^n+(2/n)^n+...+(n/n)^n x^2n-3x^n x^n-2x^n+1,因式分解 若(x^2+1/x)^n(n∈N+,n 3x^n(1-x)-2(x^n-2x^n+1) 用提取公因式法 (8x^n+1-3x^n-1)-2(-x+9x^n+1-4x^n)= 已知 x ^3n-2 ÷x^ n+1 =x^3-n×x^n+2,求n的值