Logo

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

11.06.2025 04:21

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

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

xx

xxxx

Why am I peeing so much without drinking a lot of water? I checked my blood sugar and it is normal. Could it be something else?

(n - 1)(n + 1)

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

n^2 - 1

What are some of the differences between the Democratic and Republican parties? What policies does each party advocate for? What groups do these parties usually represent?

xxx

Move the nub up to the top:

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

Why is the covert narcissist actively avoiding me when they see me everyday?

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

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

As a Chinese, what disgusts you about the Chinese society today?

xxx

xxxx

n^2 - n + n - 1

Asia stocks buoyed by tech gains; trade, economic uncertainty persists - Investing.com

xxx x