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

11.06.2025 01:24

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

Move the nub up to the top:

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n^2 - n + n - 1

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

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What are your thoughts on Italian nationalist poet Gabriele D'Annunzio, who was the subject of the documentary "Fiume o morte!"?

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

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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

Can you fly an American flag in the UK in your own private property there? What is the UK’s government stance on that? And if yes, do you also have to fly the UK flag or the American flag can fly solo?

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

(n - 1)(n + 1)

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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 is it that when the Democrats absolutely love everyone to be LGBTP, they don't even acknowledge that Barack Obama and his husband Big Mike are homosexual, and he is the first homosexual president of the USA?

n^2 - 1