Why is (n-1)(n+1)=n^2-1?
Last Updated: 03.07.2025 01:13

xxxx
So, that’s a rectangle with sides 2 and 4.
Move the nub up to the top:
Rob McElhenney Files To Legally Change Name - Deadline
The basic answer is that you cross-multiply the values in each factor:
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
xxx x
And you are left with almost a square. One less than the square of side n.
xxx x
xxxx
NBA Finals’ 17 best players ranked for Thunder vs. Pacers series - SBNation.com
n^2 - 1
xxx
n^2 - n + n - 1
What are some innovative business ideas for leveraging AI in 2024?
(n - 1)(n + 1)
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
Police take back statement dismissing hate crime in gay actor’s killing - The Washington Post
xxx