Why is (n-1)(n+1)=n^2-1?
Last Updated: 21.06.2025 00:48
n^2 - n + n - 1
xxxx
xx
What are some ways to improve speed in sprinting, running uphill, and long/middle distance running?
The basic answer is that you cross-multiply the values in each factor:
xxx x
xxx
Proba-3’s first artificial solar eclipse - European Space Agency
Move the nub up to the top:
(n - 1)(n + 1)
n^2 - 1
The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2
And you are left with almost a square. One less than the square of side n.
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
Can bosses get fired for being too hard on employees?
xxxx
So, that’s a rectangle with sides 2 and 4.
xxx x
What are some ways to cope with paranoid thoughts about being gangstalked or targeted individuals?
xxx