I will start with a question taken from internet
Why is a x b written as ab? Is it just for the purpose of abbreviation so you dont have to write as much or because the multiplication sign could be mistaken for a letter x?
KEY 1. rewrite all the operation out of bracket ( don’t miss a single one)
key 2. Leave out the bracket(distribute)
KEY 3. Regrouping
How is it now? tu me suive? it helps? give your feedback