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All quadratic equations take the general form: ax 2 +bx+c=0 The first step used to comlete the square is to divide the whole equation by the a term, in our case 2 : 1) x 2 +(7/2)x+3=0 We then move our c term...

The subjunctive tense in Spanish can't be thought of like the other tenses (present continuous, perfect etc). It is used to reflect the mood of the speaker. In English, the subjunctive is not that common eg....

Both Comparative and analystic source questions are difficult to approach if you have not been taught exactly how the exam boards like them answered.In my experience, there is a relatively simple process tha...

First, you have to work out whether the side you need to find is the hypotenuse or not. The hypotenuse is the longest side of the triangle, opposite the right angle. For this question, you use Pythagoras' th...

Sometimes you are asked to solve simultaneous equations where one of the equations has an x 2 and/or a y 2 in it - this is called a non-linear equation. This kind of question can look very complicated but on...