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Any quadratic equation, that is, an equation of the form ax 2 +bx+c=0, can be factorised , which means it is broken down into its linear factors . This means it will be of the form (x+m)(x+n). (We'll only co...

DNA and RNA have similar, but not identical, molecular structures. It is these structural differences that enable DNA to be a more suitable long-term storage molecule than RNA. Firstly, the pentose sugar in ...

Simplifying a surd means to express it using smaller numbers, making it easier to use in calculations. There are a couple of facts you will need to learn about surds, these are, 1) sqrt(a x b) = sqrt(a) x sq...

In Spanish there are two ways of saying to be. Ser is generally used for things that don’t change too much – inherent characteristics of people or things. Some examples are marital status, height, occupation...

This question requires an understanding of implicit differentiation, a specific form of the chain rule for derivatives. (Aside/reminder) - Implicit function vs Explicit function: Explicit functions : y may b...