I need help factoring this out :)

Solution: (b-2y-5) x (b+2y+5)
Step-by-step explanation:
(b-(2y+5))x(b+(2y+5))
When there is a"-" in front of the parenthesis change the sign of each term in parenthesis
When there is a"+" in front of the parenthesis the expression remains the same
:)