Logo

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

14.06.2025 06:25

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

xxx

xxx x

xxxx

Will Canadians still buy American products?

xx

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

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

What is the recommended approach for creating a film or TV script? Should the script be written first or should the story be developed first? Why?

xxx x

n^2 - 1

xxx

Weather makers: How microbes living in the clouds affect our lives - BBC

xxxx

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

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

Scientists May Have Discovered a Surprising Health Benefit of Mango - EatingWell

(n - 1)(n + 1)

Move the nub up to the top:

n^2 - n + n - 1

What is it like to have an insanely beautiful girlfriend?

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