1) Корень из 100^2 - 28^2
2) (5•корень из 6)^2 / 8

[tex] \sqrt{100 {}^{2} - 28 {}^{2} } = \sqrt{10000 - 784} = \sqrt{9216} = 96 [/tex]
[tex] \frac{(5 \times \sqrt{6} )^{2} }{8} = \frac{25 \times 6}{8} = 18.75[/tex]
[tex](5 \times \sqrt{6} )^{ \frac{2}{8} } = \sqrt[8]{25 \times 6} = 150 {}^{ \frac{1}{8} } [/tex]