98. Внесите множитель под знак корня:
1) $$5√2 = √{5^2 \cdot 2} = √{25 \cdot 2} = √{50}$$
2) $$7√3 = √{7^2 \cdot 3} = √{49 \cdot 3} = √{147}$$
3) $$0.3√6 = √{0.3^2 \cdot 6} = √{0.09 \cdot 6} = √{0.54}$$
4) $$\frac{1}{4} √{48} = √{(\frac{1}{4})^2 \cdot 48} = √{\frac{1}{16} \cdot 48} = √3$$
5) $$\frac{2}{9} √{162} = √{(\frac{2}{9})^2 \cdot 162} = √{\frac{4}{81} \cdot 162} = √{\frac{4 \cdot 2}{1}} = √8$$
6) $$-2√{10} = -√{2^2 \cdot 10} = -√{40}$$
7) $$-0.2√{30} = -√{0.2^2 \cdot 30} = -√{0.04 \cdot 30} = -√{1.2}$$
8) $$8√b = √{8^2 \cdot b} = √{64b}$$
Ответ: 1) $$√{50}$$; 2) $$√{147}$$; 3) $$√{0.54}$$; 4) $$√3$$; 5) $$√8$$; 6) $$-√{40}$$; 7) $$-√{1.2}$$; 8) $$√{64b}$$