Answer:
5 x 5 x 5 x 5
and
5^3 x 5
Step-by-step explanation:
5^4 is multiplying 5 by 5 4 times because it is 5 to the fourth power. 5^3 is also correct because it is multiplying 5 by 5 three times and then multiplying it by 5 again. This is basically 5^4.