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 $x\ times\ x$