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

13.06.2025 11:15

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

(n - 1)(n + 1)

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The more direct answer is to look at a rectangle with sides of n + 1 and n - 1, let’s go with n = 2

What is the reason for the high rate of unmarried individuals in America, particularly among males?

n^2 - 1

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

How does Arab culture and values differ from western culture and values?

n^2 - n + n - 1

Move the nub up to the top:

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

—— which songs do certain kuorans remind you of?

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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

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Which race of women are the hottest?

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

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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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