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Hasil dari  adalah ...

Hasil dari 3 square root of 72 plus 2 square root of 50 minus 7 square root of 18 adalah ...

  1. 49 square root of 2

  2. 14 square root of 2

  3. 7 square root of 2

  4. negative 7 square root of 2

  5. negative 49 square root of 2

Jawaban:

equals 3 square root of 72 plus 2 square root of 50 minus 7 square root of 18  equals 3 square root of 2 x 36 end root plus space 2 square root of 2 cross times 25 end root minus 7 square root of 2 cross times 9 end root  equals 3 cross times 6 square root of 2 plus 2 cross times 5 square root of 2 minus 7 cross times 3 square root of 2  equals 18 square root of 2 plus 10 square root of 2 minus 21 square root of 2  equals 7 square root of 2

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