Key Points:
- When you expand one set of brackets you must multiply everything inside the bracket by
what is outside.
- When you expand two linear expressions, each with two terms of the form $ax + b$, where
$a ≠ 0$ and $b ≠ 0$, you create four terms. Two of these can usually be simplified by collecting
like terms.
Problem 1
Problem 2
Problem 3
Problem 4
Problem 5
Problem 6
