Formula

Calculate the value

Answer

$\left( \sqrt{ 2 } +7-7 \right) ^{ 2 }$

$2$

Calculate the value

$\left ( \sqrt{ 2 } \color{#FF6800}{ + } \color{#FF6800}{ 7 } \color{#FF6800}{ - } \color{#FF6800}{ 7 } \right ) ^ { 2 }$

$ $ Remove the two numbers if the values are the same and the signs are different $ $

$\left ( \sqrt{ 2 } \right ) ^ { 2 }$

$\left ( \sqrt{ \color{#FF6800}{ 2 } } \right ) ^ { \color{#FF6800}{ 2 } }$

$ $ If you square the radical sign, it will disappear $ $

$\color{#FF6800}{ 2 }$

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