изи
Объяснение:
1)√11*3с6*√11*2² = √11*3³*2 = √11*27*2 = 54√11
2) √2с6*3с4*5² = 2³*3²*5 = 8*9*5 = 360
3) 3√19*3√2*√38 = √19*9*9*2*38 = 342
4) (√8-√2)*√2 = (2√2-√2)*√2 = √2*√2 = 2
