Please help with this math question

Answer:
243 [tex]x^{20} y^{10}[/tex]
Step-by-step explanation:
Since they are all inside the bracket, they all get the exponent distributed.
This means that (3^5) * (x^4)^5 * (y^2)^5
The exponents get multiplied.
If for example it was x^5 * x^6 the exponent will be added, but here they are multiplied so we add them.
In our case they are exponent, so we multiply them.