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Formula
Calculate the value
Answer
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$- \left( - \sqrt{ 8 } \right) ^{ 2 }$
$- 8$
Calculate the value
$- \left ( \color{#FF6800}{ - } \sqrt{ \color{#FF6800}{ 8 } } \right ) ^ { \color{#FF6800}{ 2 } }$
$ $ Remove negative signs because negative numbers raised to even powers are positive $ $
$- \left ( \sqrt{ 8 } \right ) ^ { 2 }$
$- \left ( \sqrt{ \color{#FF6800}{ 8 } } \right ) ^ { \color{#FF6800}{ 2 } }$
$ $ If you square the radical sign, it will disappear $ $
$- \color{#FF6800}{ 8 }$
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