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Suppose you have a quadratic equation: x² + 5x + 6

You are told it has TWO REAL ROOTS and you are t...

University applications are daunting and you want to ensure you have put your best foot forward.  However, ensuring you are likeable is also important.  

The best way to do this is to focus yo...

An adverb (adverbio in Spanish) is a word that modifies the meaning of verbs, adjectives or other words. 

E.g. "The girl smiled nervously"-...

To solve the equation: (5x+3)/(x) + x = 1, where (x) is the denominator, we have to convert the equation into an equation without any denominators.

To do this, we multiply each variable by (x)...

The chain rule is used when you're trying to differentiate a complicated function, and it allows you to split up the function into easier ones. The trick is spotting where to split the function, and what ...