Logo

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

Last Updated: 20.06.2025 13:02

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.

xxx x

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

Does meth make women super horny like it does men?

xxxx

xxxx

(n - 1)(n + 1)

Why is the government destroying the homeless instead of helping them?

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

xxx

xxx

How did the DMK alliance manage to keep the BJP out of Tamil Nadu politics all these years? Is the picture now changing in Tamil Nadu after the entry of Annamalai?

Move the nub up to the top:

n^2 - n + n - 1

xx

If you received hand-me-downs as a child, how did they make you feel?

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

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

Do married men know when their wives are having affairs?

xxx x