# Chapter 7 - Section 7.1 - Radical Expressions and Functions - Exercise Set - Page 512: 74

$2$

#### Work Step by Step

RECALL: (i) $\sqrt[n]{a^n} = a$ when $n$ is odd (ii) $\sqrt[n]{a^n} = |a|$ when $n$ is even Write the number inside the radical sign as a fifth power, and then use rule (i) to obtain: $=\sqrt[5]{2^5} \\=2$

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