Which of the following is a factor of 5xy?
5x2
xy
4
2y
A factor of polynomial P(x) is any polynomial which divides evenly into P(x). The factors of 5xy are 1, 5, x, y, 5x, 5y, xy and 5xy.
Which one among the given options is an irreducible factor of 5xy(x + 6)?