А-15•30=320;
а-450=320;
а=450+320;
а=770;
Ответ:770
.........=(3√6+4√2 - 4√2)*√2 - 6√3=3√12 + 4*2 - 4*2 - 6√3=6√3 - 6√3=0
1. -12; 0.
2. 32; -1.
3. 1000; -1.
4. -97; 100
350ч+240мин50с=1260000с+14450с=1274400с=354ч
<span>37624м-237дм4см=3762400см-2374см=3762166см</span>