Question: User: $x^2$
1. The problem is to understand the expression $x^2$.
2. The expression $x^2$ means $x$ multiplied by itself, which is called "x squared".
3. The general formula for squaring a number or variable is $$a^2 = a \times a$$.
4. For example, if $x = 3$, then $x^2 = 3^2 = 3 \times 3 = 9$.
5. Squaring a number always results in a non-negative value because multiplying two positive or two negative numbers gives a positive result.
6. This operation is fundamental in algebra and appears in many formulas, such as the area of a square with side length $x$ being $x^2$.
Final answer: $x^2$ represents the square of $x$, or $x$ multiplied by itself.