Mathematics for IGCSE & O level - Indices 2 (Section 3 - No. 29)

Which is the simplified form of ( sqrt{x^8} )?

(x^4)

(x^6)

(x^{16})

(x^8)

The square root of a number raised to the power of 8 is half of the exponent. Thus, the answer is (x^4).