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Numbers & Operations

Calculate:  ${\left(\sqrt{6+\mathrm{<msqrt><mn>35</mn></msqrt>}}+\sqrt{6-\mathrm{<msqrt><mn>35</mn></msqrt>}}\right)}^2$

$12$

$\mathrm{<mrow><mn>2</mn><mo></mo><msqrt><mn>35</mn></msqrt></mrow>}$

$14$

$2$

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