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

14.06.2025 05:28

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.

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

How exactly do things get smuggled into prison? Does the sender hide it inside something else very well? Does someone put it in their butt? Do the prisoners make deals with the officers?

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

Move the nub up to the top:

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I have been married for 34 years, and I found out my wife lied, and cheated a lot back before we got married. Does she not change, or is it possible she is still a cheater?

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Fossils show colonies of reptiles lived communally 250 million years ago - Phys.org

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n^2 - 1

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Is there anything you did that you regret? If so, what is it, and why?

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

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

(n - 1)(n + 1)

What does it mean if I had a dream about my mom who passed 12 years ago waking up from her coma and asking for my dad? I have never had a dreams about her since she has been gone.

n^2 - n + n - 1