a,\(\sqrt{0,16.0,65,225}\)
\(=\sqrt{0,16}.\sqrt{0,65}.\sqrt{225}\)
\(=0,4.25.\sqrt{0,65}=10.\sqrt{0,65}\)
\(=\sqrt{6,5}\)
b, \(\sqrt{250.360}\)
\(=\sqrt{250}.\sqrt{360}=\sqrt{25}.\sqrt{10}.\sqrt{36}.\sqrt{10}\)
\(=5.10.6=300\)
Chúc bạn học tốt!!!