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

Last Updated: 18.06.2025 00:19

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

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

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

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?

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

n^2 - n + n - 1

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

The Roman Empire at the time of Christ kept meticulous records. Why then, is there no record of the trial of Jesus?

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Move the nub up to the top:

Why does TikTok allow porn stars in its platform? Isn't it aimed at teenagers?

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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(n - 1)(n + 1)

Why do you think Filipinos are conservatives?

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n^2 - 1

Will Colapinto replace Doohan as second driver at Alpine Team during the 2025 season or is just a rumour of Argentine press?

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