9 x 9 = 81
X divided by negative nine is expressed mathematically as ( \frac{x}{-9} ) or ( -\frac{x}{9} ). This represents a value that is the result of taking ( x ) and dividing it by negative nine, which will yield a negative result if ( x ) is positive, and a positive result if ( x ) is negative.
Just X to the second power minus nine. You can't subtract nine from x to the second power unless you know what x is.
5 x (5 + 9) x 9 = 5 x 14 x 9 = 630
(x+3)(x-3)
The product of 99 x 99 is 9,801. 99 x 100=9900.
if x= 3 or -3
450.
So, by that you mean x/-9? If so, you just divide x by nine and make it negative.
The Roman numeral for nine is IX. X is 10 and I is 1. When the I is before the X you subtract.
89 + x = x +89
nine