Logo

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

11.06.2025 11:49

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

n^2 - 1

Move the nub up to the top:

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

Are you struggling with weight loss and finding it hard to stay consistent? What’s your biggest challenge when trying to lose weight at home?

(n - 1)(n + 1)

xxx x

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

I live in Massachusetts. Are there any resources here for people that are being harassed by voice to skull, etc.?

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

Aston Martin announce Stroll to miss Spanish Grand Prix - F1

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

xxx

xxx x

Planetarium’s discovery about outer solar system shocks astronomers - South China Morning Post

n^2 - n + n - 1

xxxx

xx

How do you emotionally react to when others seem to feel sorry for you?

xxx