# Question #ec859

##### 2 Answers

#### Answer:

#### Explanation:

In any calculation involving multiple operations, you have to know the correct order in which to do them. This is usually known as PEDMAS, BODMAS or similar.

I prefer to work with the concept of TERMS. Terms are separated by single PLUS or MINUS signs.

Each term is simplified separately to give a single answer and these are added or subtracted in the last step.

Within each term, the order is brackets, then indices, and then multiplication and division.

It is a good idea to write the ADD terms at the front and the SUBTRACT terms at the end.

This expression is already in this order.

You could also have noticed that:

in

Therefore