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Formula
Find the square root
Answer
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$$121$$
$\pm 11$
Find the square root
$\color{#FF6800}{ 121 }$
$ $ For even square roots, $ \pm $ is attached in front of the square root $ $
$\pm \sqrt{ \color{#FF6800}{ 121 } }$
$\pm \sqrt{ \color{#FF6800}{ 121 } }$
$ $ Organize the part that can be taken out of the radical sign inside the square root symbol $ $
$\pm \color{#FF6800}{ 11 }$
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