Why is (n-1)(n+1)=n^2-1?
09.06.2025 06:13

Move the nub up to the top:
(n - 1)(n + 1)
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
In your humble opinion, why does the narcissist mistake kindness for weakness in some people?
xxx x
So, that’s a rectangle with sides 2 and 4.
xxx
xxxx
xxx x
xxx
Is it true that in 2028 there will be a new AIDS variant that will wipe out all the LBGTQ+ people?
xxxx
The basic answer is that you cross-multiply the values in each factor:
xx
The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2
n^2 - n + n - 1
n^2 - 1
Nintendo Switch 2 Welcome Tour Review - IGN
And you are left with almost a square. One less than the square of side n.