Algebra - Expanding Brackets

Question 1

What do we do when expanding brackets with a term outside of a bracket?

Answer 1

When expanding brackets with a term outside of the bracket we multiply each term inside of the bracket by the term outside.
Eg - 3(x+2)
= 3x+6

Question 2

What is the process of ‘FOIL’?

Answer 2

The process of FOIL is:
Firsts
Outers
Inners
Lasts

Question 3

How do we square a bracket containing two terms?

Answer 3

To square a bracket containing two terms:

1) square the first
2) twice the product of the two terms
3) square the last

Eg - (2x-5)squared
= 4x squared - 20x +25