f(x)= 3+(12/(x-3)) over 2-16(x/x^2-9)

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- Sep 4th 2008, 11:22 PMNotEinsteincan someone help me start this?
f(x)= 3+(12/(x-3)) over 2-16(x/x^2-9)

- Sep 5th 2008, 12:21 AMProve It
OK, let me LaTeX it so I can read it to start with...

Let's get the top and bottom to have the same denominator to start with...

And I don't like having fractions in a numerator and denominator, so let's write this as a product instead...

Expand...

Factorise everything possible...

Cancelling everything possible leaves...

There you go...