Step-by-step explanation:
(x+2y)(x-2y)
- x^2-2xy+2xy-(2y)^2
- x^2-4y^2
r = 1/15
a branliest from the answer will be appreciated
Answer:
yes
Step-by-step explanation:
The answer is 16 outcomes, there are two possible outcomes per classroom, and there are 8 classrooms
