the factors are what can be multipied to get to a number
so example
the factors of 6 are 1,2,3
the factors of ab is 1, a, b
the factors of
(4x)(3x²+5y)
(4)(x)(3x²+5y)
(2)(2)(x)(3x²+5y)
the factors are 1,2,4,2x, 4x, 3x²+5y, 2(3x²+5y), 4(3x²+5y), 2x(3x²+5y), x(3x²+5y)
3x² and 5y are not factors because they are inside the parenthasees
from what I can see, you can eliminate the 2nd choice and the 3rd choice and 4th choice
the answe ris the first choice (ends with "and 3x²+5y) probably is 4x and 3x²+5y