Answer:
[tex]2 \sqrt{2} [/tex]
Step-by-step explanation:
[tex] \sqrt{8} [/tex]
[tex] \sqrt{ {2}^{3} } = \sqrt{ {2}^{2 + 1} } [/tex]
[tex] \sqrt{ {2}^{2} \times {2}^{1} } = \sqrt{ {2}^{2} \times 2} [/tex]
[tex] \sqrt{ {2}^{2} } \sqrt{2} [/tex]
[tex]\boxed{\green{=2 \sqrt{2}}} [/tex]