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

14.06.2025 01:22

Why is (n-1)(n+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.

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Why did Cartman love Heidi purely with heart, her being the first one he ever did, but then one day Butters tells him that all women are manipulative and then he began to believe that she was a bad person and pretended to be a victim?

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

n^2 - 1

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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?

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

n^2 - n + n - 1

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Everyone says the pet population is out of control. Everyone says you MUST spay or neuter your pets. No one wants to talk about how its almost $1,000 to spay or neuter a pet. Why is it so expensive if its so necessary? Animal shelters do it for free.

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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

(n - 1)(n + 1)

Is a man over 50 not married no kids a red flag?

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

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How does it feel to be in a marriage without any love?

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