因式分解 15x^(2n+3)-25x^(n+1)+5x^(n-1)

问题描述:

因式分解 15x^(2n+3)-25x^(n+1)+5x^(n-1)

15x^(2n+3)-25x^(n+1)+5x^(n-1)
=5x^(n-1)*3x^(n+4)-5x^(n-1)*5x^2+5x^(n-1)
=5x^(n-1)*[3x^(n+4)-5x²+1]