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For example: 5x +25

In order to factorise we need to find a common factor for both '5x' and '25'. This factor gets taken outside of the brackets.

For this example the common ...

Recall: We treat inequality in a similar manner to the equal sign.

The steps are:

1. Collect like terms

2. Simplify

3x – 7 > 3 ...

What are the maxima and minima?
The maxima of a function f(x) are all the points on the graph of the function which are 'local maximums'.

A point where x=a is a local max...