[tex]2 \sqrt{6} \times \sqrt{8} [/tex]

[tex]2 \sqrt{6} \times \sqrt{8 } = 2 \sqrt{6 \times 8} [/tex]
[tex] = 2 \sqrt{48} = 2 \sqrt{16 \times 3} [/tex]
[tex] = 2 \times \sqrt{16} \times \sqrt{3} \\ = 2 \times 4 \times \sqrt{3} \\ = 8 \sqrt{3} [/tex]