Answer:
4th option
Explanation:
216p³ + 125q³ ← is a sum of cubes and factors in general as
a³ + b³ = (a + b)(a² - ab + b²)
then
216p³ + 125q³
= (6p)³ + (5q)³ → with a = 6p and b = 5q
= (6p + 5q)((6p)² - 6p(5q) + (5q)² )
= (6p + 5q)(36p² - 30pq + 25q²)