16) Edexcel IGCSE Maths 4H - 12 January 2015

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for question 15a, its 2 marks you cant just write down the answer you need to show working by factorizing to (x+1)(x-3)=0, x+1=0 so x=-1, x-3=0 so x=3. But great video! :)

jonathanng
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+Maths by Mr Withers Sorry this is a bit late but I don't understand question 24.

ericche