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

Last Updated: 17.06.2025 04:54

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

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Who are the archers in Genesis 49:23?

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

(n - 1)(n + 1)

Was there any slavery of white people that actually compares to the transatlantic slave trade? I’m not baiting or anything actually genuinely curious and want to know.

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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

Move the nub up to the top:

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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

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

n^2 - n + n - 1

What are some disadvantages of living in rural areas? What are the advantages?

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n^2 - 1

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Which city should one visit between Nice and Cannes? Why?

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