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

14.06.2025 06:21

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

n^2 - 1

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

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Fewer than 500 neurons are associated with the suppression of binge drinking, new research finds - Medical Xpress

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

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The International Boxing Association said that Khelif and Lin competing in Paris Olympics were disqualified from the tournament for testing positive for XY chromosomes which give an unfair advantage in the women’s division. What do you think?

n^2 - n + n - 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

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

What a list actors/ actresses are notorious for being jerks in real life?

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Move the nub up to the top:

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What happens to single guys when they get older?

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

(n - 1)(n + 1)

What are some ways to improve speed in sprinting, running uphill, and long/middle distance running?

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