Why is (n-1)(n+1)=n^2-1?
Last Updated: 22.06.2025 11:34

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Why do some people tell the girl I like that I don’t like her when I do like her?
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And you are left with almost a square. One less than the square of side n.
Have you ever met somebody so stupid that they made you question how they survived this long?
The basic answer is that you cross-multiply the values in each factor:
(n - 1)(n + 1)
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2
What exactly is digital marketing?
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Move the nub up to the top:
n^2 - n + n - 1
What is your most intimate experience with your best friend?
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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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So, that’s a rectangle with sides 2 and 4.