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

Last Updated: 17.06.2025 02:04

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

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

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Who is Meghan Markle and why is she so controversial on the Internet?

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

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

SEC clears Trump Media filing, opening door to multi-billion-dollar Bitcoin buy - The Block

(n - 1)(n + 1)

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If we do not know the name of the father of a child, e.g. a foundling, an illegitimate, etc., then to whom should the bin or the binti of the child's name be applied?

Move the nub up to the top:

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Has anyone shared his wife with a friend? How was it?

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

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

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Why cant school buses ditch kids who are late to the bus at the school? Like on the way home, if a kid is late when all the others arrived to the bus on time, why cant they leave the late kid behind since its not fair to the on time kids to wait?

n^2 - n + n - 1