Edexcel IGCSE Maths 復(fù)習(xí)筆記 2.6.2 Algebraic Fractions - Simplifying Fractions
If you are asked to simplify an algebraic fraction and have to factorise the top or bottom it is very likely that one of the factors will be the same on the top and the bottom – you can use this to help you factorise difficult quadratics!

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