Question

${x}^{2} = ( \sqrt{2} - 5) ^{2}$
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Answer 1

$x ^ { 2 } = ( \sqrt { 2 } - 5 ) ^ { 2 }$

$x^{2}=\left(\sqrt{2}\right)^{2}-10\sqrt{2}+25$

$x^{2}=2-10\sqrt{2}+25$

$x^{2}=27-10\sqrt{2}$

$x=5-\sqrt{2}$

$x=-\left(5-\sqrt{2}\right)$

$x=5-\sqrt{2}$

$x=\sqrt{2}-5$

Sper ca ti-am fost de folos. Succes!!!