Tolong dijawab! pakai cara yah, Mksh

maaf no 8 kurang tau. maaf jga kalo salah hehe

Nomor 8]
[tex] = 3 \sqrt{2} \times \sqrt{75} \div \sqrt{54} \\ = 3 \sqrt{2} \times \sqrt{25 \times 3} \div \sqrt{9 \times 6} \\ = 3 \sqrt{2} \times 5 \sqrt{3} \div 3 \sqrt{6} \\ = 15 \sqrt{6} \div 3 \sqrt{6} \\ = 5[/tex]

Nomor 9]
[tex] = 6 \sqrt{8} - 4 \sqrt{32} + \sqrt{128} \\ = 6 \sqrt{4 \times 2} - 4 \sqrt{16 \times 2} + \sqrt{64 \times 2} \\ = 12 \sqrt{2} - 16 \sqrt{2} + 8 \sqrt{2} \\ = (12 - 16 + 8) \sqrt{2} \\ = 4 \sqrt{2} [/tex]

Nomor 10]
[tex] = 2 \sqrt{18} + \sqrt{32} - 4 \sqrt{8} \\ = 2 \sqrt{9 \times 2} + \sqrt{16 \times 2} - 4 \sqrt{4 \times 2} \\ = 6 \sqrt{2} + 4 \sqrt{2} - 8 \sqrt{2} \\ = (6 + 4 - 8) \sqrt{2} \\ = 2 \sqrt{2} [/tex]