if anyone could please help fast i will mark as brainiest

Answer:
[tex]\large\boxed{x^{36}}[/tex]
Step-by-step explanation:
Consider the properties:
[tex]\boxed{(x^a)^b=x^{a\cdot b}}[/tex]
[tex]\boxed{x^a \cdot x^b=x^{a+b}}[/tex]
[tex]\therefore (x^3)^6 \cdot (x^2)^9= x^{18} \cdot x^{18}= x^{36}[/tex]