The complete sentences are
(√16)² =
in simplest form.
By the Power of Power rule,
=
So,
must equal to 16 in radical form.
We can simplify the expression using the power of a power rule, which states that

Apply the power of a power rule:
(√16)² =

Simplify the exponent:

Evaluate the exponent:

Simplify the expression:
16 = 16¹
Evaluate the exponent:
(√16)² = 16
Complete question
Complete the sentence.
Enter your answers in the blank.
(√16)² = ___________ in simplest form.
By the Power of Power rule,
=
So,
must equal ___________ in radical form.