bentuk 6/6+3√2 dapt disederhanakan menjadi

Mapel : Matematika
Materi : Merasionalkan Akar
Kelas : 9
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[tex] = \frac{6}{6 + 3 \sqrt{2} } \times \frac{6 - 3 \sqrt{2} }{6 - 3 \sqrt{2} } \\ \\ = \frac{36 - 18 \sqrt{2} }{36 - 18} \\ = \frac{36 - 18 \sqrt{2} }{18} \\ = 2 - \sqrt{2} [/tex]

Kelas 9 Matematika
Bab Akar dan Pangkat

6/(6 + 3√2)
= (6/(6 + 3√2)) . ((6 - 3√2)/(6 - 3√2))
= (6 . (6 - 3√2)) / (6² - (3√2)²)
= (36 - 18 √2) / (36 - 18)
= (36 - 18 √2) / 18
= 2 - √2