Вынесите множитель из−под знака корня:
1) $\sqrt{24}$;
2) $\sqrt{63}$;
3) $\sqrt{700}$;
4) $\sqrt{0,32}$;
5) $\frac{1}{7}\sqrt{196}$;
6) $-2,4\sqrt{600}$;
7) $-1,6\sqrt{50}$;
8) $\frac{5}{8}\sqrt{3\frac{21}{25}}$.
$\sqrt{24} = \sqrt{4 * 6} = \sqrt{4} * \sqrt{6} = 2\sqrt{6}$
$\sqrt{63} = \sqrt{9 * 7} = \sqrt{9} * \sqrt{7} = 3\sqrt{7}$
$\sqrt{700} = \sqrt{100 * 7} = \sqrt{100} * \sqrt{7} = 10\sqrt{7}$
$\sqrt{0,32} = \sqrt{0,16 * 2} = \sqrt{0,16} * \sqrt{2} = 0,4\sqrt{2}$
$\frac{1}{7}\sqrt{196} = \frac{1}{7} * 14 = 2$
$-2,4\sqrt{600} = -2,4 * \sqrt{100 * 6} = -2,4 * \sqrt{100} * \sqrt{6} = -2,4 * 10 * \sqrt{6} = -24\sqrt{6}$
$-1,6\sqrt{50} = -1,6 * \sqrt{25 * 2} = -1,6 * \sqrt{25} * \sqrt{2} = -1,6 * 5\sqrt{2} = -8\sqrt{2}$
$\frac{5}{8}\sqrt{3\frac{21}{25}} = \frac{5}{8}\sqrt{\frac{96}{25}} = \frac{5}{8} * \frac{\sqrt{96}}{\sqrt{25}} = \frac{5}{8} * \frac{\sqrt{16 * 6}}{5} = \frac{\sqrt{16} * \sqrt{6}}{8} = \frac{4\sqrt{6}}{8} = \frac{\sqrt{6}}{2}$
Пожауйста, оцените решение