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Emath

Sec 2 Math – Factorisation methods

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Mastering factorisation is important in O level Amath. There are 4 methods of factorisation as follows:

  1. Take out common factor
  2. Grouping
  3. Multiplication frame
  4. a2 – b2 = (a+b)(a-b)

Lets take a look at some examples below.

Sec 3 Emath – Completing the square

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Many students struggle to understand the concept of completing the square. It helps us to solve quadratic equations and allow us to find the turning point of quadratic functions. Hence, completing the square is a useful and important technique to learn in Emath. Students taking Amath are also required to know this technique.

Below we see the steps to complete the square.

lets take a look at 2 examples.