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

Last Updated: 18.06.2025 00:32

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

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

n^2 - n + n - 1

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There was this one weird Bollywood movie that was released in the 2000s. Amitabh Bachchan was starring with another actress and the story was about how the old guy (Amitabh Bachchan) fell in love with the young woman. What is the name of this movie?

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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

According to Amy Schumer, John Cena was actually inside of her during the TrainWreck love scene. I thought that was illegal in Hollywood?

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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Have husbands and wives ever had a threesome with someone in real life? How did it happen?

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

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

What are the causes of over sweating?

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Move the nub up to the top:

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How do I stop someone from forcing/pestering me to become gay/bisexual when I already want to be straight?

(n - 1)(n + 1)