Take the greatest possible factor out of the square root.
Square root of 80

6400

Step-by-step explanation:

hopes this helps

4.

Step-by-step explanation:

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80. Furthermore, the greatest perfect square on this list is 16 and the square root of 16 is 4.

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