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

12.06.2025 01:22

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

xxxx

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

xxx

6 "Bad" High-Protein Foods You Should Eat to Gain Muscle If You Have Diabetes, According to Dietitians - EatingWell

Move the nub up to the top:

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^2 - n + n - 1

Ireland added to list of countries monitored by the U.S. for currency manipulation - Fortune

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

xxxx

(n - 1)(n + 1)

Why are you a Muslim? Why is it Islam for you and not something else?

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

xx

xxx x

Jenny from Perth writes – my partner is the life of the party, women and men adore him. But at home, he gets angry at us for the silliest reasons and never nice words me or our kids, always putting us down. Should I stay or leave him?

n^2 - 1

xxx

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

Does coffee boost longevity? New study may have findings for people in midlife - San Francisco Chronicle

xxx x