Question

Urgenteeee me ajudem por favor

Answer 1

$\sqrt[3]{26 - 15 \sqrt{3} } = \sqrt[3]{8 + 18 - 12 \sqrt{3} - 3 \sqrt{3} } = \\ = \sqrt[3]{2^{3} + 3.2.( \sqrt{3})^{2} - 3.2^{2}. \sqrt{3} - \sqrt[2]{3}^{3} } = \\ = \sqrt[3]{(2 - \sqrt[2]{3})^{3} } = 2 - \sqrt{3} \\ \sqrt{(2 - \sqrt{3})^{2} } = \sqrt{4 - 2.2. \sqrt{3} + 3 } = \sqrt{7 - 4 \sqrt{3} }$
Letra B