Jawabanmu

2014-08-20T21:12:56+07:00
1. (5√3+√2)(√3-√2)
  = (5.3) - 5√6 + √6 - 2
  = 15 - 5√6 + √6 - 2
  = 13 - 4√6

2. 2√3 . √24 / √7 . 3√14
  = 2√72 / 3√98
  = 2√36√2 / 3√49√2
  = 2.6√2 / 3.7√2
  = 12√2 / 21√2
  = 4/7