Answer:
[tex]80^{\frac{1}{2}} \ and \ 4\sqrt{5}[/tex]
Step-by-step explanation:
8√5 = √64×√5
= √320
≠ √80
Not equivalent
[tex]160^{\frac{1}{2}}[/tex] = √160
≠ √80
Not equivalent
[tex]80^{\frac{1}{2}}[/tex] = √80
Equivalent
4√10 = √16×√10
= √160
≠ √80
Not equivalent
4√5 = √16×√5
= √80
Equivalent