Como eu faço essas contas por favor preciso urgentemente​

<div class="athena_tag_tk_ques_text_content" data-test="answer-box-text"><p><strong>Resposta:</strong></p><p><strong>a) </strong><img align="absmiddle" alt="\sqrt{14}:\sqrt{2}=\sqrt{14:2}=\sqrt{7}" class="athena_tag_latex_mark" id="TexFormula1" src="https://hw-cdn.snapquiz.net/seahk_6e39fea5150c70556540b2c457023e65.jpg" title="\sqrt{14}:\sqrt{2}=\sqrt{14:2}=\sqrt{7}"/></p><p><strong>b) </strong><img align="absmiddle" alt="\sqrt[3]{20}:\sqrt[3]{5}=\sqrt[3]{20:5}=3\sqrt{4}" class="athena_tag_latex_mark" id="TexFormula2" src="https://hw-cdn.snapquiz.net/seahk_e84e997fb4629858f75bea2a1df0f9d1.jpg" title="\sqrt[3]{20}:\sqrt[3]{5}=\sqrt[3]{20:5}=3\sqrt{4}"/></p><p><strong>c) </strong><img align="absmiddle" alt="8\sqrt{10}:\sqrt{2}=8\sqrt{5}" class="athena_tag_latex_mark" id="TexFormula3" src="https://hw-cdn.snapquiz.net/seahk_68dac0c1a1915d3a6bb3b07195f4c947.jpg" title="8\sqrt{10}:\sqrt{2}=8\sqrt{5}"/></p><p><strong>d) </strong><img align="absmiddle" alt="20\sqrt{20}:5\sqrt{2}=4\sqrt{20}\sqrt{2}=4.2\sqrt{5}\sqrt{2}=8\sqrt{10}" class="athena_tag_latex_mark" id="TexFormula4" src="https://hw-cdn.snapquiz.net/seahk_317fccf62e50913462428384557f0c75.jpg" title="20\sqrt{20}:5\sqrt{2}=4\sqrt{20}\sqrt{2}=4.2\sqrt{5}\sqrt{2}=8\sqrt{10}"/></p><p></p></div>