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How do we get (ab)^3=a^33a^2b+3ab^2b^3 if it is not (ab)(ab)(ab)
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Hi, yes, you are right, is .
Continue to expand, you will get .
Hope it helps!
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There is one challenging USA Math Olympiad 1997 (USA) question using this technique, see
my blog at:
http://tomcircle.wordpress.com/2013/05/07/imotechnique/
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Your blogs seems to me a great place for math lovers. I love to solve math problems…so this is the right place for me…Thanks for sharing o level maths here.
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Reblogged this on Singapore Maths Tuition.
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