Answers

2014-10-26T13:09:25+08:00
To get the radical expression, you must get the square root first.√12 = 2√3so √3 + 2√3 = 3√3 
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2√27 = 6√3 , 2√3 so 6√3 + 2√3 = 8√3
got it? 2√3 came from √12.
is this corretc?
Of course! I am taking Kumon that's why I have already mastered this
ahhh!!