Answer:
[tex]\large\boxed{x^2z^2}[/tex]
Step-by-step explanation:
[tex]xxyyyzz=\boxed{xx}yyy\boxed{zz}=\boxed{x^2}y^3\boxed{z^2}\\\\xxxxzzz=\boxed{xx}xx\boxed{zz}z=\boxed{x^2}x^2\boxed{z^2}z\\\\GCF(xxyyyzz,\ xxxxzzz)=\boxed{x^2}\boxed{z^2}=x^2z^2[/tex]
