Question

Как решить пример

Answer 1

$\sqrt[4]{\frac{49^{4} }{0,5^{4} }} = \frac{49}{0,5} =98$

$\sqrt[3]{2^{6}*5^{3} } =\sqrt[3]{4^{3}*5^{3} } =\sqrt[3]{20^{3} } =20$

$\sqrt[7]{\frac{2^{7}*3^{21}}{5^{14}} } = \sqrt[7]{\frac{2^{7}*27^{7}}{25^{7}} } = \sqrt[7]{\frac{54^{7}}{25^{7}} } =\frac{54}{25} =2,16$

$\sqrt[5]{4} * \sqrt[5]{8} = \sqrt[5]{32} = \sqrt[5]{2^{5}}=2$

$\sqrt[5]{y^{5}*2^{3}}*\sqrt[5]{2^{7}} = \sqrt[5]{y^{5}*2^{3}*2^{7}}=\sqrt[5]{(y*4)^{5}}=y*4$

$\sqrt[3]{(7-\sqrt{22})*(7+\sqrt{22}) }= \sqrt[3]{7^{2}-22} = \sqrt[3]{27} =\sqrt[3]{3^{3}} =3$