laureenpouur
New member
- Joined
- Sep 3, 2020
- Messages
- 1
Hello, I have been stuck on this question for two days now and I don't get how to solve this. Please help!! I'm going to be super thankful.
if x = 100^1999 and y = 100^-1999, then(x + y)^2 - (x-y)^2 =
if x = 100^1999 and y = 100^-1999, then(x + y)^2 - (x-y)^2 =