Question

por favor me ajudem
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Answer 1

$\sqrt{76} \times \sqrt{12} = \sqrt{912} \\ \sqrt{ {2}^{2} \times {2}^{2} \times 3 \times 19 } \\ 2 \times 2 \sqrt{3 \times 19} \\ 4 \sqrt{57}$

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$\sqrt[3]{1875} \div \sqrt[3]{3} \\ \sqrt[3]{3 \times {5}^{3} \times 5} \div \sqrt[3]{3} \\ 5 \sqrt[3]{3 \times 5} \div \sqrt[3]{3} \\ 5 \sqrt[3]{15} \div \sqrt[3]{3} = 5 \sqrt[3]{5}$

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$\sqrt[4]{144} \div \sqrt[4]{9} \\ \sqrt[4]{ {2}^{4} \times {3}^{2} } \div \sqrt[4]{9} \\ 2\sqrt[4]{ {3}^{2} } \div \sqrt[4]{9} \\ 2 \sqrt[4]{9} \div \sqrt[4]{9} = 2 \sqrt[4]{1}$