Answer:
5^(3m+10)
Step-by-step explanation:
There are several ways you can go at this. One is to do the division of fractions the way you often do division with fractions: multiply by the inverse of the denominator.
= (5^(m+4)) · (25^(m+3))
= (5^(m+4)) · ((5^2)^(m+3))
= (5^(m+4)) · (5^(2m+6))
= 5^(m+4+2m+6)
= 5^(3m+10)
