Answer: a(x+5) / 4
Explanation:
ab^2(x+5)^3 / 4b(x+5)^2,
cancel the b^2 and b
a(x+5) ^3 / 4(x+5)^2
since there's x + 5 in both numerator and denominator you can cancel out one
a(x+5)^2 (x+5) / 4(x+5)^2
(cancel out the ones in bold)
after that you will be left with: a(x+5) / 4
hope you understood lol