Why is (n-1)(n+1)=n^2-1?
15.06.2025 13:14

xxx x
xxx x
(n - 1)(n + 1)
How do you weigh in on the Vance-couch conversation?
n^2 - 1
n^2 - n + n - 1
xx
How do you cope when your mother doesn't love you?
Move the nub up to the top:
xxxx
xxx
What is the most heartbreaking thing your child has told you?
So, that’s a rectangle with sides 2 and 4.
And you are left with almost a square. One less than the square of side n.
The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2
What is some information about unprotected sex and pregnancy?
xxxx
xxx
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
What does it mean when we dream about demons, ghosts, monsters, etc.?
The basic answer is that you cross-multiply the values in each factor: