[tex] \blue{ \huge \bf \: \boxed{mg = \sqrt{a \times b} }}[/tex]
[tex] \sqrt{7 \times 28} = \sqrt{7 \times 7 \times 4} = \sqrt{7 {}^{2} \times {2}^{2} } = \\ = 7 \times 2 = 14 \\ \\ \sqrt{3 \times 75} = \sqrt{3 \times 15 \times 5 } = \\ = \sqrt{3 \times 3 \times 5 \times 5} = \\ = \sqrt{3 {}^{2} \times {5}^{2} } = \\ = 3 \times 5 = 15[/tex]
[tex] \sqrt{24 \times 6} = \sqrt{4 \times 6 \times 6} = \sqrt{2 {}^{2} \times {6}^{2} } = \\ = 2 \times 6 = 12[/tex]
[tex] \sqrt{50 \times 8} = \sqrt{2 \times 25 \times 2 \times 2 \times 2} = \\ = \sqrt{2 {}^{4} \times 25 } = \sqrt{2 {}^{4} \times {5}^{2} } = \\ = 2 {}^{2} \times 5 = 4 \times 5 = 20[/tex]
