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

13.06.2025 11:58

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

Move the nub up to the top:

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

Why are breasts attractive?

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

n^2 - 1

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What factors contributed to The Beatles' bitterness?

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

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Its year 2041, and president Hunter Biden has ordered every republican who sweared at him to be arrested and shot. I am on my way to the death row listening to the cheer of the Liberal mob chanting death death death. How can I escape?

(n - 1)(n + 1)

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What role did China play in the signing of the "Beijing Declaration" between Fatah and Hamas? What other information is worth noting for talks among Palestinian factions in Beijing?

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

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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Red Sox rookie addresses alleged false claims about father’s background - Boston Herald

n^2 - n + n - 1