Why is (n-1)(n+1)=n^2-1?
Last Updated: 23.06.2025 12:04
(n - 1)(n + 1)
So, that’s a rectangle with sides 2 and 4.
And you are left with almost a square. One less than the square of side n.
What is the Replika app, and how does it work?
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Acting NASA Administrator Janet Petro June 6, 2025 - NASA Watch
The basic answer is that you cross-multiply the values in each factor:
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What is your response when someone says "how may I help you"?
Move the nub up to the top:
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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If women aren't shallow, why do most tall, good-looking men have girlfriends?
n^2 - 1
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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Is it common for girlfriends to have close male friends who are single and not related to them?
n^2 - n + n - 1