3 akar 6 kali (3 akar 5 kali akar 80)

[tex]3 \sqrt{6} \times (3 \sqrt{5} \times \sqrt{80} ) = \\ 3 \sqrt{6} \times (3 \sqrt{5} \times \sqrt{16 \times 5} ) \\ 3 \sqrt{6} \times (12 \times 5) \\ 3 \sqrt{6} \times 60 \\ 180 \sqrt{6} [/tex]