Why is (n-1)(n+1)=n^2-1?
12.06.2025 14:35
Move the nub up to the top:
(n - 1)(n + 1)
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Why do liberals refuse to define what a woman is and what does that mean for the future of feminism?
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n^2 - n + n - 1
The basic answer is that you cross-multiply the values in each factor:
Should parents force their kids to go to school when they are sick?
So, that’s a rectangle with sides 2 and 4.
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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When was you wife swapping fantasy started?
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And you are left with almost a square. One less than the square of side n.
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What did Rama tell Sita about Kaliyug?
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n^2 - 1
What we learned from the 2025 Le Mans 24 Hours test day - The Race
If you cut off the end of that rectangle, you make it smaller, 2 * 3 and a separate nub of size 1 * 2