Powers and roots

Indices – (or index) says how many times to use the number in a multiplication, called a POWER.

Indices or powers is shown as a small number above the object number in a formula showing how many times the number should be multiplied

In the seas, (indices) remember who has the POWER.

Example 1

`5^4 = 5` to the power of `4`

`= 5\times5\times5\times 5 = 625`

Example 2

This is said to be `5` to the power of `2`. When a number is to the power of `2` it is said to be squared.

Example 3

This equation should look like this 4³ which is 4x4x4 equalling 64

This is said to be `4` to the power of `3` which is `4\times4\times4 = 64`.

Example 4

`9^(1/2)=sqrt9=3`

Here `9` is to the power of a half, which is the same as the square root, which in this case is `3`.

Example 5

`x^2`

This is `x` to the power of `2`. Which is `x` squared, which is `x\ times\ x`