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Formula
Calculate the value
$\left( -3 \right) ^{ 2 } \times \left( -2 \right) ^{ 3 }$
$- 72$
Calculate the value
$\left ( \color{#FF6800}{ - } \color{#FF6800}{ 3 } \right ) ^ { \color{#FF6800}{ 2 } } \left ( - 2 \right ) ^ { 3 }$
 Remove negative signs because negative numbers raised to even powers are positive 
$3 ^ { 2 } \left ( - 2 \right ) ^ { 3 }$
$\color{#FF6800}{ 3 } ^ { \color{#FF6800}{ 2 } } \left ( - 2 \right ) ^ { 3 }$
 Calculate power 
$\color{#FF6800}{ 9 } \left ( - 2 \right ) ^ { 3 }$
$9 \left ( \color{#FF6800}{ - } \color{#FF6800}{ 2 } \right ) ^ { \color{#FF6800}{ 3 } }$
 Move the (-) sign forward as it does not disappear if the (-) sign is powered to an odd number of times 
$9 \times \left ( \color{#FF6800}{ - } 2 ^ { 3 } \right )$
$\color{#FF6800}{ 9 } \color{#FF6800}{ \times } \left ( \color{#FF6800}{ - } \color{#FF6800}{ 2 } ^ { \color{#FF6800}{ 3 } } \right )$
 Simplify the expression 
$\color{#FF6800}{ - } \color{#FF6800}{ 9 } \color{#FF6800}{ \times } \color{#FF6800}{ 8 }$
$\color{#FF6800}{ - } \color{#FF6800}{ 9 } \color{#FF6800}{ \times } \color{#FF6800}{ 8 }$
 Multiply $- 9$ and $8$
$\color{#FF6800}{ - } \color{#FF6800}{ 72 }$
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