6.
- 5y^2z - 10z^3 + 32xz^2.
у^2(16x - 5z) +2z^2(16x - 5z).
(16x - 5z)(у^2 + 2z^2).
7.
X^(n+1)y^n-y^(n+3)+2x^(n+1)-3y^3
(х^(n+1))*(y^n+2)-y^3(y^n+2)
(x^(n+1)-y^3)*(y^n+2)^2
