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A typical GCSE question will give you an equation in the from ax² + bx + c, x² - 8x + 15 = 0 for example, and ask you to solve the possible value of X. To do this we need to split th...

There are various ways to solve simultaneous equations. The two easiest are by elimiation and by substitution. By Elimation When solving by elimination you want to ensure that you ...

One of the most exciting parts of the Economics course is discovering the way in which various things that you will study interrelate. If European productivity were to increase, then the unit price of the...

Both alkenes and alkanes are chains of carbon and hydrogen molecules. The chains can be different lengths and each length chain has a different name. 

An alkene is a chain which has a double bond b...

There are two different verbs meaning 'to be' in Spanish- ser and estar. They are used for different things. 

The uses for ser can be remembered using the acronym 'Doctor':

Date, Occupation,...