1. What is the difference between a sum and a product?
A sum is when terms or numbers are ADDED together.
A product is when terms or numbers are MULTIPLIED.
2. Can every algebraic expression be factorised?
No. Many expressions cannot be factorised and many need advanced techniques to factorise them.
3. What is the FIRST thing to look for when trying to factorise?
Always look to find a common factor first. This often makes the facotrising easier.