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Formula
Calculate the value
$$- \left ( - 2 \right ) ^ { 2 }$$
$- 4$
Calculate the value
$- \left ( \color{#FF6800}{ - } \color{#FF6800}{ 2 } \right ) ^ { \color{#FF6800}{ 2 } }$
 Remove negative signs because negative numbers raised to even powers are positive 
$- 2 ^ { 2 }$
$- \color{#FF6800}{ 2 } ^ { \color{#FF6800}{ 2 } }$
 Calculate power 
$- \color{#FF6800}{ 4 }$
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