Indices provides us with a nice quick way of doing calculations

So instead of doing (y x y x y x y) x (y x y x y), we can do y⁴ x y³.

We need to carefully memorise the indices rules for:

y^a x y^b and y^a ÷ y^b and (y^a)^b and y^-a

(although we memorise these, they are logical and we could work them out ourselves if we forgot them).

Let’s try some examples with the teacher:

Let’s try using these rules in the following questions (exercise 2B on pages 22 and 23 of the textbook:

Here are the answers to the questions above.

Use those that you got wrong as a learning guide of the things you need to focus on or possibly restudy: