1) \(\sqrt{45} = \sqrt{9 \cdot 5} = \sqrt{9} \cdot \sqrt{5} = 3\sqrt{5}\)
2) \(\sqrt{32} = \sqrt{16 \cdot 2} = \sqrt{16} \cdot \sqrt{2} = 4\sqrt{2}\)
3) \(\frac{1}{10}\sqrt{200} = \frac{1}{10}\sqrt{100 \cdot 2} = \frac{1}{10} \cdot 10 \cdot \sqrt{2} = \sqrt{2}\)
4) \(\sqrt{128} = \sqrt{64 \cdot 2} = \sqrt{64} \cdot \sqrt{2} = 8\sqrt{2}\)
5) \(-0.05\sqrt{4400} = -0.05\sqrt{4 \cdot 1100} = -0.05 \cdot 2 \cdot \sqrt{11 \cdot 100} = -0.05 \cdot 2 \cdot 10 \sqrt{11} = -1\sqrt{11} = -\sqrt{11}\)
1) \(\sqrt{27} = \sqrt{9 \cdot 3} = \sqrt{9} \cdot \sqrt{3} = 3\sqrt{3}\)
2) \(\sqrt{24} = \sqrt{4 \cdot 6} = \sqrt{4} \cdot \sqrt{6} = 2\sqrt{6}\)
3) \(\sqrt{20} = \sqrt{4 \cdot 5} = \sqrt{4} \cdot \sqrt{5} = 2\sqrt{5}\)
4) \(\sqrt{125} = \sqrt{25 \cdot 5} = \sqrt{25} \cdot \sqrt{5} = 5\sqrt{5}\)
5) \(\frac{1}{8}\sqrt{96} = \frac{1}{8}\sqrt{16 \cdot 6} = \frac{1}{8} \cdot 4 \sqrt{6} = \frac{1}{2}\sqrt{6}\)
6) \(0.4\sqrt{250} = 0.4 \sqrt{25 \cdot 10} = 0.4 \cdot 5 \sqrt{10} = 2\sqrt{10}\)
7) \(-2\sqrt{0.18} = -2\sqrt{0.09 \cdot 2} = -2 \cdot 0.3 \sqrt{2} = -0.6\sqrt{2}\)
8) \(\frac{4}{9}\sqrt{63} = \frac{4}{9}\sqrt{9 \cdot 7} = \frac{4}{9} \cdot 3 \sqrt{7} = \frac{4}{3}\sqrt{7}\)
9) \(0.8\sqrt{1250} = 0.8 \sqrt{25 \cdot 50} = 0.8 \cdot 5 \sqrt{25 \cdot 2} = 0.8 \cdot 5 \cdot 5 \sqrt{2} = 20\sqrt{2}\)
10) \(\frac{3}{7}\sqrt{98} = \frac{3}{7}\sqrt{49 \cdot 2} = \frac{3}{7} \cdot 7 \sqrt{2} = 3\sqrt{2}\)
11) \(10\sqrt{0.03} = 10\sqrt{\frac{3}{100}} = 10 \cdot \frac{\sqrt{3}}{10} = \sqrt{3}\)
12) \(0.7\sqrt{1000} = 0.7\sqrt{100 \cdot 10} = 0.7 \cdot 10 \sqrt{10} = 7\sqrt{10}\)
Ответ: Решения выше
У тебя все получится, главное - не бойся пробовать и ошибаться!