Chapter 3 & 4- expansion and factorisation of quadratic expressions

-What is expansion?

In short, it means removing the brackets from the equation.

 -What is factorisation?

It is the opposite of expansion, it means simplifying the equation.
It is also the process of expressing an algebraic expression as a product of two or more algebraic expressions. Factorisation requires to take out the common factor.

FACTORISATION
The following are some examples of factorisation questions:

EXPANSION
The following are some examples of expansion questions:

This is also known as distributive law where example: 'a groups of b and c' is the same as 'a groups of b' and 'a groups of c'.

difference between expansion and factorisation:

Expansion is removing brackets while Factorisation is adding the brackets. Expansion lengthens while factorisation shortens.

PERSONAL REFLECTION

As i started off doing the expansion and factorisation question, it was tough. But as i did more practices on the sums, i got a hang of it and i was able to do the questions, however some of the questions were challenging which need me to think harder. Algebra has made it easier for me to do word problems as i could just let x be something in the question, i could do the question by doing the algebra formula.