Algebra: Application (I)

Detailed working of the 2 questions that we disucssed in the previous lesson.

In the working below, 2 methods are shown: 

• Method 1: Factorisation
• Method 2: Expansion

You will find method 1 easier to manage though many of you are incline to expand the expression (Method 2). Do note Method 2 usually requires us to apply what's to be covered in Sec 2.