Question

Anyone know the answer

Answer 1

it’s the fourth answer.

Answer 2

For this case we have the following expression:
root (b) * root (b)
Rewriting we have:
root (b * b)
Then, for power properties:
root (b ^ 2)
Finally, we have:
root (b ^ 2) = b
Answer:
The equivalent expression is given by:
b
option 3