Answer:
[tex]\huge\boxed{2 \sqrt{10}}[/tex]
Step-by-step explanation:
When taking a square root and making it a radical, we need to list out it's factors and find which one we can take the square root of.
The factors of 40 are:
1, 2, 4, 5, 8, 10, 20, 40.
Out of these, we need to look for one that we can find the square root of.
We know that the square root of 4 is 2.
Therefore, we can make [tex]\sqrt{40}[/tex] into [tex]\sqrt{4 \cdot 10}[/tex].
The square root of 4 is 2. Therefore, we can put that outside the radical.
[tex]2 \sqrt{10}[/tex].
Hope this helped!
