hasil [tex]3 \sqrt{18} - 8 \sqrt{2} - \sqrt{50} [/tex]

[tex]3 \sqrt{18} - 8 \sqrt{2} - \sqrt{50} \\ = 3 \sqrt{9 \times 2} - 8 \sqrt{2} - \sqrt{25 \times 2} \\ = 3 \times 3 \sqrt{2} - 8 \sqrt{2} - 5 \sqrt{2} \\ = 9 \sqrt{2} - 8 \sqrt{2} - 5 \sqrt{2} \\ = - 4 \sqrt{2} [/tex]