Question

因式分解 x的2n+3次方-x的2n+2次方+2x的2n+1次方的结果是?

Answer 1

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

=[x^(2n+1)](x²-x+2)

^表示指数,x^(2n+1)表示x的2n+1次方,其余类推.