Answer:
Option A:
A. Each side of 5√x = 10 should be squared.
(5√x)^2 = 10^2
25x = 100, so x = 4
B. x = -6 is an extraneous solution, so x = 2 is the only solution. When solving equations with radicals, you need to check for extraneous solutions.
Option B:

does not have any real solutions.
![\sqrt[4]{m + 4} - \sqrt[4]{3m} = 0](https://img.qammunity.org/2024/formulas/mathematics/high-school/ga2khy7x6e59ejs3trx4dih07m8te8c9y7.png)
![\sqrt[4]{m + 4} = \sqrt[4]{3m}](https://img.qammunity.org/2024/formulas/mathematics/high-school/817nwqdmj1mmoc0dwhvzmk0fpegxc3iheu.png)


