Question

1. if n is an odd integer , show
that ( n²-1 )is divisible by 8..

2. prove that if x and y are both odd positive integers then x²+y² is an even but not divisible by 4...
.
please any one give the answer of both question with explanation..
.
don't give any irrelevant answer...​

Answer 1

I'm your hope your my hope I'm j-hope nice to meet you

Answer 2

Answer:

sorry I didn't know the answer

btw

good night dear