Why is (n-1)(n+1)=n^2-1?
15.06.2025 08:14
And you are left with almost a square. One less than the square of side n.
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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 do you do when you are struggling to fall asleep?
n^2 - n + n - 1
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Who is the beast of Revelation 13?
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Move the nub up to the top:
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Why does a college girl cover her face with a scarf in Bangalore?
n^2 - 1
So, that’s a rectangle with sides 2 and 4.
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How old is planet Earth? Is it 4.5 billion years old or 6,000 years old?
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
(n - 1)(n + 1)
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