Expanding Brackets

Question 1

What do we do when we have number outside of Bracket?

Answer 1

We multiple everything inside by the number outside

Question 2

What do we do when we got two brackets next to each other?

Answer 2

We multiply every term in 1 bracket by every term in the other bracket

Question 3

What does two same signs make?

Answer 3

Positive

Question 4

What does two different signs make?

Answer 4

Negative