I need some help on this

Answer:
When we are multiplying the same number, let it be n, m times, what we do is:
[tex]n^m[/tex], 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:
Then we multiply all: [tex]5^4*3^2*x^3y[/tex]