Why is (n-1)(n+1)=n^2-1?
Last Updated: 19.06.2025 01:07
The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2
xx
n^2 - 1
Why do women wear less clothes compared to men?
xxx
xxxx
And you are left with almost a square. One less than the square of side n.
˗ˋˏ ♡ ˎˊ˗ NEW WOMAN - analysis ˗ˋˏ ♡ ˎˊ˗
(n - 1)(n + 1)
xxx
n^2 - n + n - 1
What is the reason behind some people wearing trunks instead of speedos when swimming in pools?
Move the nub up to the top:
xxx x
So, that’s a rectangle with sides 2 and 4.
What are the best self-care practices to improve mental health?
xxx x
xxxx
The basic answer is that you cross-multiply the values in each factor:
What habits do happy couples have?
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2