Question

simplify the square root. assume all variables represent positive numbers. if the square root is already simplified, so state. $sqrt{31}$
select the correct choice below and, if necessary, fill in the answer box to complete your choice.
a. $sqrt{31} = $ (type an exact answer, using radicals as needed.)
b. the expression is already simplified.

Explanation:

Step1: Identify 31's factors

31 is a prime number, its only positive factors are 1 and 31.

Step2: Check for perfect square factors

No perfect square factors exist (other than 1, which does not simplify the radical).

Answer:

B. The expression is already simplified.