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

Last Updated: 20.06.2025 23:54

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

(n - 1)(n + 1)

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.

Why is Prince Harry being fired by BetterUp CEO Alexi Robichaux, and what role did Marc Benioff’s decision to pull sponsorship play in this?

xxx

Move the nub up to the top:

xxx x

How do I get my body in shape?

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

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

Is it legal for an employer to ask why you are taking time off from work?

xxxx

xxx x

xx

How do people who are deaf learn sign language? Is it typically taught by parents at a young age or are there programs available for learning it later in life?

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

xxxx

n^2 - 1

How will the 2026 delimitation affect India as a whole keeping the new count of 888 seats in mind (not the current 543)? I’m looking for genuine answers with facts and not rhetoric. I will only listen to answers and not reply to any of them.

n^2 - n + n - 1