Answer:
[tex]30x^2y^4z^4[/tex]
Step-by-step explanation:
If we multiply 6x by 5x, we get [tex]30x^2[/tex].
If we multiply y by [tex]y^{3}[/tex], we get [tex]y^{4}[/tex].
z stays the same, since it's not being multiplied by anything.
Hope this helped!
