Вынесите множитель из−под знака корня:
1) $\sqrt{27}$;
2) $\sqrt{24}$;
3) $\sqrt{20}$;
4) $\sqrt{125}$;
5) $\frac{1}{8}\sqrt{96}$;
6) $0,4\sqrt{250}$;
7) $-2\sqrt{0,18}$;
8) $\frac{4}{9}\sqrt{63}$;
9) $0,8\sqrt{1250}$;
10) $\frac{3}{7}\sqrt{98}$;
11) $10\sqrt{0,03}$;
12) $0,7\sqrt{1000}$.
$\sqrt{27} = \sqrt{9 * 3} = \sqrt{9} * \sqrt{3} = 3\sqrt{3}$
$\sqrt{24} = \sqrt{4 * 6} = \sqrt{4} * \sqrt{6} = 2\sqrt{6}$
$\sqrt{20} = \sqrt{4 * 5} = \sqrt{4} * \sqrt{5} = 2\sqrt{5}$
$\sqrt{125} = \sqrt{25 * 5} = \sqrt{25} * \sqrt{5} = 5\sqrt{5}$
$\frac{1}{8}\sqrt{96} = \frac{1}{8}\sqrt{16 * 6} = \frac{1}{8} * \sqrt{16} * \sqrt{6} = \frac{1}{8} * 4 * \sqrt{6} = \frac{1}{2}\sqrt{6}$
$0,4\sqrt{250} = 0,4\sqrt{25 * 10} = 0,4 * \sqrt{25} * \sqrt{10} = 0,4 * 5 * \sqrt{10} = 2\sqrt{10}$
$-2\sqrt{0,18} = -2\sqrt{0,09 * 2} = -2 * \sqrt{0,09} * \sqrt{2} = -2 * 0,3 * \sqrt{2} = -0,6\sqrt{2}$
$\frac{4}{9}\sqrt{63} = \frac{4}{9}\sqrt{9 * 7} = \frac{4}{9} * \sqrt{9} * \sqrt{7} = \frac{4}{9} * 3 * \sqrt{7} = \frac{4}{3}\sqrt{7} = 1\frac{1}{3}\sqrt{7}$
$0,8\sqrt{1250} = 0,8\sqrt{625 * 2} = 0,8 * \sqrt{625} * \sqrt{2} = 0,8 * 25 * \sqrt{2} = 20\sqrt{2}$
$\frac{3}{7}\sqrt{98} = \frac{3}{7}\sqrt{49 * 2} = \frac{3}{7} * \sqrt{49} * \sqrt{2} = \frac{3}{7} * 7 * \sqrt{2} = 3\sqrt{2}$
$10\sqrt{0,03} = 10\sqrt{0,01 * 3} = 10 * \sqrt{0,01} * \sqrt{3} = 10 * 0,1 * \sqrt{3} = \sqrt{3}$
$0,7\sqrt{1000} = 0,7\sqrt{100 * 10} = 0,7 * \sqrt{100} * \sqrt{10} = 0,7 * 10 * \sqrt{10} = 7\sqrt{10}$
Пожауйста, оцените решение