Adding/Subtracting Algebraic Fractions. Am I Wrong Or Is The Textbook? (C3) (Edexcel) Watch

MohammedPatel
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I'm 99% sure there is a publishing error in my textbook - but I just want to be absolutely certain I've not gone wrong somewhere.

The question:

My working out and answer:


The answer given by the textbook, with (x + 2) squared as the denominator as apposed to ( x + 2 ) cubed:


(The textbook is: Edexcel AS and A-level Modular Mathematics, Core Mathematics 3)
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Mr M
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(Original post by MohammedPatel)
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You are right. Couldn't you have just substituted a number to check?
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TeeEm
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The older editions of these books (C1 to C4) are full ot typos.

Although the newer editions have corrected some typos, in my opinion these are worst books ever written.

Full of typos/ chapters do not "gel" / poor choice of examples etc.

The new spec was announced in February ( I cannot remember if it was 2003 or 2004) and these books were in the market 7 months later! (it would take at least this amount of time just to research and collect the material)
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