Multiple choice questions III — task. Mathematics State Board, Class 9.

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1. When

{(2 \sqrt{5} - \sqrt{2})}^{2}

is simplified, we get

\(8 - 4\sqrt{10}\)
\(22 - 4\sqrt{10}\)
\(4\sqrt{5} + 2\sqrt{2}\)
\(2\sqrt{10} - 2\)

2.

{(0.000729)}^{\frac{- 3}{4}} \times {(0.09)}^{\frac{- 3}{4}}

\(=\)

$\frac{10^{3}}{3^{3}}$
$\frac{10^{6}}{3^{6}}$
$\frac{10^{5}}{3^{5}}$
$\frac{10^{2}}{3^{3}}$

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