Why is (n-1)(n+1)=n^2-1?
10.06.2025 14:44

n^2 - n + n - 1
And you are left with almost a square. One less than the square of side n.
xxxx
How do flat Earthers explain the existence of other spherical planets?
n^2 - 1
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
xxxx
xxx
xx
Midea is recalling its U-shaped air conditioners because of potential mold growth - The Verge
xxx
Move the nub up to the top:
So, that’s a rectangle with sides 2 and 4.
What Happens to Your Blood Pressure When You Drink Energy Drinks Every Day? - Verywell Health
(n - 1)(n + 1)
The basic answer is that you cross-multiply the values in each factor:
xxx x
Has anyone liked being made a cocksucker?
xxx x