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

Last Updated: 17.06.2025 00:51

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

Move the nub up to the top:

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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

My grandmother deeded me her house before she passed last year. Her son still lives there refusing to move. What steps should I take to have him removed?

(n - 1)(n + 1)

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

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What kind of book did you write after turning 55?

n^2 - n + n - 1

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

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Can you name a female actress who has had bad timing or luck in her film career?

n^2 - 1

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

Do you think most people would rather be a certain race or are most people happy with the race they are?

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