Answer:
When we are multiplying the same number, let it be n, m times, what we do is:
, where n is the base and m the exponent.
In this case we have 4 fives, 2 threes, 3 x and 1 y which are being multiplied , so we can convert them to exponents:
- 4 fives:

- 2 threes:

- 3 x:

Then we multiply all:
