已知（-1/3xyz）^2 · N=1/3x^（4n+1）y^（n+3）z^5÷5x^（2n+1）y^（n-1）z,求N

（-1/3xyz）^2 · N=1/3x^（4n+1）y^（n+3）z^5÷5x^（2n+1）y^（n-1）z
1/9x²y²z²=1/15x^2ny^4z^4=1/9x²y²z² *3/5x^(2n-2)y²z²
∴N=3/5x^(2n-2) y²z²