x squared plus 5
2
54.3 squared
81 x 2 - 16 = 146
(2x - 1)(2x + 3)
x squared plus 5
2
-22 - -22
By factoring I get x-3 divided by x+3
There are no rational factors.
(x + 2)(x - 2)
X squared is not an inverse function; it is a quadratic function.
54.3 squared
x^2 - y^2 - 4 is in its simplest form.
x = ? 42 = x squared minus x
81 x 2 - 16 = 146
XX or X*X, can be written as X squared. The inverse of a function "sort of cancels it out". I know the inverse of a square is the square root. Since we need the inverse of X squared, it's inverse is the square root of X. sqrt(x)