Why is (n-1)(n+1)=n^2-1?
13.06.2025 03:29
n^2 - 1
xxx x
xxx
The #1 Breakfast to Eat to Support Your Metabolism, According to Dietitians - EatingWell
Move the nub up to the top:
The basic answer is that you cross-multiply the values in each factor:
xxx
(n - 1)(n + 1)
xxxx
xxx x
iOS 26 Could Bring Sleep Detection, Camera Controls, and New Gestures to AirPods - MacRumors
xx
xxxx
And you are left with almost a square. One less than the square of side n.
What are some effective ways to cope with loss and grief?
So, that’s a rectangle with sides 2 and 4.
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2
Oakmont caddies look to fill roles during U.S. Open, on and off the bag - TribLIVE.com
n^2 - n + n - 1