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The important concept here is that in order to add or subtract fractions, they must have a common denominator. The easiest way of finding a common denominator for three or more fractions ...

3 Mehods:Step 1: Does the function factorise. In this case yes it does. giving y=(2x+1)(x-4)Method: Find the factors of the contract in this case (4). Which are (2,2) , (4,1)We know that a quadratic must ...

(2n + 1) ² - (2n-1)can also be written be as (2n +1)(2n + 1) - (2n-1) Two brackets next to each other indicate that you must multiple them by each other, this is also known as expanding the bra...

The conditional tense is the French way of saying I "would do something". It's an action that would happen if a certain condition occurred. So, for example, in English you might say "i woul...

If we look at group 7 of the periodic table, we can see that iodine is below chlorine. The trend in going down a group in the periodic table is that the number of electron shells increases, therefore, num...