Question

0'3√300-1/2√64=
15 балов

Answer 1

$0.3 sqrt{300} - frac{1}{2} sqrt{64} = \ 0.3 sqrt{100 times 3} - frac{1}{2} times 8 =$
$0.3 times 10 sqrt{3} - 4 = \ 3 sqrt{3} - 4$