Why is (n-1)(n+1)=n^2-1?
14.06.2025 12:52
The basic answer is that you cross-multiply the values in each factor:
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(n - 1)(n + 1)
Isn’t freedom of speech and expression an absolute right?
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Move the nub up to the top:
What are some things that children used to wait for, but are no longer common in today's society?
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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
What are some interests in sharing pictures of wives?
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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
Do you think Japan will have same-sex marriage by 2030?
n^2 - 1
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And you are left with almost a square. One less than the square of side n.
What are some cute stories with your crush?
n^2 - n + n - 1