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begin mathsize 14px style open parentheses 3 plus square root of 5 plus square root of 3 plus square root of 7 close parentheses open parentheses 3 minus square root of 5 plus square root of 3 minus square root of 7 close parentheses open parentheses square root of 35 plus 3 square root of 3 close parentheses equals... end style 

  1. -4

  2. 4

  3. -8

  4. 16

  5. -16

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begin mathsize 14px style open parentheses 3 plus square root of 5 plus square root of 3 plus square root of 7 close parentheses open parentheses 3 minus square root of 5 plus square root of 3 minus square root of 7 close parentheses equals open parentheses 3 plus square root of 3 plus square root of 5 plus square root of 7 close parentheses open parentheses 3 plus square root of 3 minus square root of 5 minus square root of 7 close parentheses equals open parentheses 3 plus square root of 3 plus square root of 5 plus square root of 7 close parentheses open parentheses 3 plus square root of 3 minus square root of 5 minus square root of 7 close parentheses end style 

Ingat bahwa begin mathsize 14px style open parentheses straight x plus straight y close parentheses open parentheses straight x minus straight y close parentheses equals straight x squared minus straight y squared end style . Sehingga

begin mathsize 14px style open parentheses 3 plus square root of 5 plus square root of 3 plus square root of 7 close parentheses open parentheses 3 minus square root of 5 plus square root of 3 minus square root of 7 close parentheses equals open parentheses open parentheses 3 plus square root of 3 close parentheses plus open parentheses square root of 5 plus square root of 7 close parentheses close parentheses open parentheses open parentheses 3 plus square root of 3 close parentheses minus open parentheses square root of 5 plus square root of 7 close parentheses close parentheses equals open parentheses 3 plus square root of 3 close parentheses squared minus open parentheses square root of 5 plus square root of 7 close parentheses squared equals open parentheses 9 plus 6 square root of 3 plus 3 close parentheses minus open parentheses 5 plus 2 square root of 35 plus 7 close parentheses equals open parentheses 12 plus 6 square root of 3 close parentheses minus open parentheses 12 plus 2 square root of 35 close parentheses equals 6 square root of 3 minus 2 square root of 35 end style 

Maka

begin mathsize 14px style open parentheses 3 plus square root of 5 plus square root of 3 plus square root of 7 close parentheses open parentheses 3 minus square root of 5 plus square root of 3 minus square root of 7 close parentheses open parentheses square root of 35 plus 3 square root of 3 close parentheses equals open parentheses 6 square root of 3 minus 2 square root of 35 close parentheses open parentheses square root of 35 plus 3 square root of 3 close parentheses equals 2 open parentheses 3 square root of 3 minus square root of 35 close parentheses open parentheses 3 square root of 3 plus square root of 35 close parentheses equals 2 open parentheses open parentheses 3 square root of 3 close parentheses squared minus open parentheses square root of 35 close parentheses squared close parentheses equals 2 open parentheses 27 minus 35 close parentheses equals 2 open parentheses negative 8 close parentheses equals negative 16 end style 

 

 

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