2^4 = 16
The power of '4' means '2' multiplied to itself four times over.
2 x 2 x 2 x 2
Hence 2 x 2 = 4 x 2 x 2
4 x 2 x 2 = 8 x 2
8 x 2 = 16
NB Sometimes the word exponential or index is used insted of power.
2 raised to the 2nd power, written as (2^2), equals 4. This is calculated by multiplying 2 by itself: (2 \times 2 = 4).
-2 to the second power is (-2) x (-2) = +4
2/4 raised to the second power equals 0.25
1/2
4^4=4*4*4*4 = 256 OR (2^2)^4 = 2^8 = 256
4 raised to the first power is just 4.
-2 to the 4th power is 16.
What is 8 raised to the power of 2
x = 2 22 = 4
In exponential form, 64 can be expressed in at least four ways. These are 64 raised to the first power, 2 raised to the sixth power, 4 raised to the fourth power, and 8 raised to the second power.
The power could then be called an exponent. The number that is being raised to a power is called the base. In the case of 42, the exponent is 2 and the base is 4.
You evaluate the power of the power first. For example, 4 to the power of (3 to the power of 2) is 4 to the power of 9 which is 262,144