Ответ:
- а) \(\sqrt{12y}-0.5\sqrt{48y}+2\sqrt{108y}=2\sqrt{3y}-2\sqrt{3y}+12\sqrt{3y}=12\sqrt{3y}\).
- б) \(2\sqrt{8a}+0.3\sqrt{45c}-4\sqrt{18a}+0.01\sqrt{500c}=4\sqrt{2a}+0.9\sqrt{5c}-12\sqrt{2a}+0.1\sqrt{5c}=-8\sqrt{2a}+\sqrt{5c}\).
Ответ: а) \(12\sqrt{3y}\); б) \(\sqrt{5c}-8\sqrt{2a}\).
