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

16.06.2025 03:44

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

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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^2 - 1

When writing a novel, how can a character be developed well, but QUICKLY?

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

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

Why would the state lie about the Earth's shape? We know that it's flat, but why do they lie and tell us that it is a sphere?

n^2 - n + n - 1

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What’s the craziest thing you’ve heard pretending to be asleep?

(n - 1)(n + 1)

Move the nub up to the top:

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

I think that being gay is wrong, but I treat gay people respectfully like any other person. Is it homophobic? Or offensive in any kind of way? Aren’t disagreement and discrimination two different things?

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

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Why are some people afraid of monsters?

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