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When presented with a simultaneous equation, you need to find out the values of the letters (commonly x and y). You might be given two equations such as: a) 2x + 4y = 6, and b) -4x - 3y = 3. The first thing ...

When structuring your essay, you should initially look at the question and pick out the key areas that require your focus. Highlight areas of the question and write (use colours if it helps!) what is meant b...

The question is asking for the range of x values that satisfies the inequality. First rearrange the equation to form a quadratic: x 2 – x – 6 < 0. Factorise the quadratic to find x-intercepts: ( x – 3 )( ...

We will set the answer layout first by forming 2 brackets. (x+a)(x+b)=0We then look at the signs used, particularly negative signs. In this question, there is a minus sign before the 4.This means that one of...

In most cases, the preterite tense refers to completed actions , which are actions that have definite beginning and end points. Whereas the imperfect refers to actions which are not completed and do not have...