Why is (n-1)(n+1)=n^2-1?

09.06.2025 02:24

Why is (n-1)(n+1)=n^2-1?

xxx

xxx x

xx

My boss called me on a Saturday to let me know he that due to financial reasons, I was no longer needed effective immediatley. 3 days later, he sends me a text asking about work issues. How do I respond?

If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2

n^2 - n + n - 1

Move the nub up to the top:

My grandmother deeded me her house before she passed last year. Her son still lives there refusing to move. What steps should I take to have him removed?

So, that’s a rectangle with sides 2 and 4.

xxxx

The basic answer is that you cross-multiply the values in each factor:

Whole Foods is opening new stores in 2025: See locations - USA Today

xxx

The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2

xxx x

Belmont Stakes: Hill Road faces challenges beyond tough field - Horse Racing Nation

(n - 1)(n + 1)

xxxx

And you are left with almost a square. One less than the square of side n.

I feel so attached and in love with a dead celebrity. My love for anyone else is overshadowed by my love for him. What does this mean?

n^2 - 1