Why is (n-1)(n+1)=n^2-1?
08.06.2025 01:37
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
(n - 1)(n + 1)
xxx
How do I find a transgender girlfriend?
Move the nub up to the top:
xxx x
xxx
n^2 - n + n - 1
xxx x
The basic answer is that you cross-multiply the values in each factor:
What are some signs that a therapist may have poor boundaries with their clients?
And you are left with almost a square. One less than the square of side n.
So, that’s a rectangle with sides 2 and 4.
n^2 - 1
When do you start "growing old"?
xxxx
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
Liverpool FC parade crash injured rises to 109 - BBC
xxxx