yes
Yes, if appropriate.
Base of a power
x264: Without knowing the value of x you cannot evaluate this expression.
power
The power of a product states that when you raise a product of factors to a power, you can distribute the exponent to each factor. Mathematically, this is expressed as ((ab)^n = a^n \times b^n). If you have the same factor, such as (a), the expression ((a^m)^n) simplifies to (a^{m \cdot n}). For example, if (a = 2), (m = 3), and (n = 2), then ((2^3)^2 = 2^{3 \cdot 2} = 2^6 = 64).
a4b2
17 to the 3rd power as a product of the same factor is written 17 x 17 x 17
Is is called the exponent.
4 to the second power
The power is the product between the magnitude of voltage and the magnitude of current. Whereas the power factor is a ratio between the active power and the apparent power.
A literal factor is a factor in an algebraic expression that consists of a single variable or a combination of variables raised to a positive integer power. For example, in the expression 3xy^2, the literal factors are x and y.
To evaluate an expression means to find its numerical value. A power consists of a base and an exponent. According to the order of operations, operations inside parentheses (or other grouping symbols) are performed first, followed by the evaluation of powers ... then (*/) and (+-).