1) 17*19+17*45-17*14 = 17 * 19 - 17 * 14 + 17 * 45 = 17 * (19 - 14) + 17 * 45 =
= 17 * 5 + 17 * 45 = 17 * (5 + 45) = 17 * 50 = 850
Ответ: 850
2) 12*32-12*18+38*14 = 12 * (32 - 18) + 38 * 14 = 12 * 14 + 38 * 14 =
= 14 * (12 + 38) = 14 * 50 = 700
Ответ: 700