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The first step is to make sure that the coefficient of x^2 is 1 by dividing all terms by a (where a equals the coefficient of x^2). Then we must write the quadratic equation as a square plus another term. To...

The reason why we factorise quadratic equation is because it is a neater and simpler way of writing the expression. Example 1 If we wanted to factorise x^2 + 10 + 21 we must look at factors of 21 that add up...

In a bar chart, the vertical axis represents the frequency. On the other hand, in a histogram, it is the area which represents the frequency. Therefore, the label of the vertical axis on a histogram should b...

A quadratic equation is one with a squared term, like 3x 2 + 9x. If you're asked to factorise an equation like this, you need to find the highest common factor . This means that you need to find the highest ...

Using the Example 9Y + 6 Factorising means to remove a common factor from both the ‘9Y’ term and the ‘6’ – this common factor will then be placed outside the brackets. For us to complete this question, we mu...