1)
[ \sqrt[4]{0,16 \times 0,81} - \sqrt{69} ]
[ = \sqrt[4]{0,1296} - \sqrt{69} ]
[ = \sqrt{0,36} - \sqrt{69} ]
[ = 0,6 - \sqrt{69} ]

2)
[ \sqrt[5]{60 \times 625} ]
[ = \sqrt[5]{37500} ]
[ = 15 ]

3)
[ \sqrt[4]{48} \times \sqrt{96} ]
[ = 2\sqrt{3} \times 4\sqrt{6} ]
[ = 8\sqrt{18} ]
[ = 8 \times 3\sqrt{2} ]
[ = 24\sqrt{2} ]

4)
[ \sqrt[8]{37 \times 5^{10}} \times \sqrt[8]{3^9 \times 5^6} ]
[ = \sqrt[8]{37 \times 5^{10} \times 3^9 \times 5^6} ]
[ = \sqrt[8]{37 \times 5^{16} \times 3^9} ]
[ = \sqrt[8]{37 \times 3^9 \times 5^8 \times 5^8} ]
[ = \sqrt[8]{37 \times 3^9 \times 5^8} ]
[ = \sqrt[8]{37 \times 3^8 \times 3 \times 5^8} ]
[ = \sqrt[8]{37 \times 3^8 \times 3 \times 5^8} ]
[ = 3\sqrt[8]{37 \times 5^8} ]

5)
[ \sqrt[5]{80 \times 625} ]
[ = \sqrt[5]{50000} ]
[ = 10 ]