1).akar 12 dikurang akar 75 ditambah akar 18 2) . 4 akar 3 kali 5 akar 6

1. [tex] \sqrt{12} - \sqrt{75} + \sqrt{18} = \sqrt{-45} [/tex]



2. [tex]4\sqrt{3} X 5\sqrt{6} \\ = 20\sqrt{18} \\ = 20 \sqrt{9} \sqrt{2} \\ = 20.3 \sqrt{2} \\ = 60 \sqrt{2}[/tex]