2. Hasil dari pertanyaan pada gambar di bawah adalah

2^(1/2) . 3^(1/3) - 72^(1/6)
= 2^(3/6) . 3^(2/6) - 72^(1/6)
= (2^3 . 3^2)^(1/6) - 72^(1/6)
= (8 . 9)^(1/6) - 72^(1/6)
= 72^(1/6) - 72^(1/6)
= 0