# Chapter 10 - Exponents and Radicals - 10.1 Radical Expressions and Functions - 10.1 Exercise Set - Page 634: 12

$\{-11,11\}$

#### Work Step by Step

Since $( -11 )^2= 121$ and $11 ^2= 121$, the square roots of $121$ are $\{-11,11\}$.

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