Упростила выражение
50*n*12
50*12*n
600*n
-19+24-8-3=-6
45-32-17+6=2
-15+(-21)+(-7)+10=-33
-35+(-4)+(-13)+2=-50
_____________________________
| /// | 4+2 | // | 2+4 6
| \\ | | \\\ |
_________________________________
| /// | 3+1 | / | 1+3 4
| \ | | \\\ |
_________________________________
| /// | 3+5 | ///// | 5+3
| \\\\\ | | \\\ | 8
______________ _____________________
| / | 1+4 | //// | 4+1
| \\\\ | | \ | 5
_____________________________________
1) 504*370=186480
2)186480-158092=28388
3)28388*47=1334236
4)1334236+1612=1335848
ответ:1335848