Outline the various ways that you can differentiate a function

The ways to differentiate a function depend on the function itself. If there is only one x value in the function you can differentiate as normal (hard to explain on a computer), yet if the function contains more than one x value is a separate place, you will need to use another approach such as the chain, product or quotient rule

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I don't understand how to visualise differentiation, please could you show my an example to allow me to understand what it actually is better?