Question

-√(0,24) • (-√900)
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Answer 1

-√(0,24) × (-√900) =

= - √(24/100) × - 30

= - √(6/25) × - 30

= - √6/5 × - 30

= 6√6

Answer 2

$\it -\sqrt{0,24} \cdot (-\sqrt{900} ) = - \sqrt{\frac{24}{100} } \cdot (-30) = -\frac{2\sqrt{6} }{10} \cdot (-30) = -2\sqrt{6} \cdot (-3) = 6\sqrt{6}$