Answer:
[tex]20x^{10}[/tex]
Step-by-step explanation:
Given is a number as
[tex]400x^{20}[/tex]
We are to find the square root of this expression.
WE can find square root for constant separately and x term separately and multiply both to get the square root
[tex]\sqrt{400} =20\\\sqrt{x^{20} } =x^{10}[/tex]
Hence square root
=[tex]20x^{10}[/tex]