При подстановке каждого значения x в соответствующее выражение получаем:

1) (4110 - 15)(4110 + 15) - 16110² - 3110 - 26 = (440 - 15)(440 + 15) - 16110² - 3110 - 26 = 425*455 - 193600 - 330 - 26 = 193375 - 193600 - 330 - 26 = -581;

2) (8150 - 8)(8150 + 8) - 64150² + 4150 - 47 = (1200 - 8)(1200 + 8) - 64150² + 600 - 47 = 11921208 - 144000 -47 = 1443696 - 144000 - 47 = 1300649;

3) (970 - 8)(970 + 8) - 8170² - 470 + 32 = (630 - 8)(630 + 8) - 8170² - 280 + 32 = 622638 - 396900 - 280 + 32 = 396076 - 396900 - 280 + 32 = -1072;

4) (370 - 16)(370 + 16) - 970² - 8 = (210 - 16)(210 + 16) - 970² - 8 = 194*226 - 44100 - 8 = 43844 - 44100 - 8 = -264;

5) (7100 - 13)(7100 + 13) - 49100² - 6100 - 29 = (700 - 13)(700 + 13) - 4900 - 600 - 29 = 687*713 - 4900 - 600 - 29 = 489831 - 5500 - 29 = 484302;

6) (970 - 12)(970 + 12) - 8170² - 770 + 44 = (630 - 12)(630 + 12) - 8170² - 490 + 44 = 618642 - 396900 - 490 + 44 = 396036 - 396900 - 490 + 44 = -1310;

7) (2120 - 20)(2120 + 20) - 4120² - 10120 - 21 = (240 - 20)(240 + 20) - 480 - 1200 - 21 = 220*260 - 480 - 1200 - 21 = 57200 - 480 - 1200 - 21 = 55799;

8) (780 - 12)(780 + 12) - 4980² + 780 - 21 = (560 - 12)(560 + 12) - 4980² + 560 - 21 = 548572 - 313600 + 560 - 21 = 313456 - 313600 + 560 - 21 = -605;

9) (5110 - 14)(5110 + 14) - 25110² - 8 = (550 - 14)(550 + 14) - 25110² - 8 = 536*564 - 302500 - 8 = 302304 - 302500 - 8 = -204;

10) (4120 - 5)(4120 + 5) - 16120² + 8120 - 48 = (480 - 5)(480 + 5) - 16120² + 960 - 48 = 475485 - 19200 + 960 - 48 = 230375 - 19200 + 960 - 48 = 211087;

11) (8120 - 16)(8120 + 16) - 64120² - 3120 + 2 = (960 - 16)(960 + 16) - 64120² - 360 + 2 = 944976 - 76800 - 360 + 2 = 920944 - 76800 - 360 + 2 = 843786;

12) (7130 - 7)(7130 + 7) - 49130² + 3130 - 25 = (910 - 7)(910 + 7) - 49130² + 390 - 25 = 903917 - 63700 + 390 - 25 = 828051 - 63700 + 390 - 25 = 764716;

13) (2110 - 11)(2110 + 11) - 4110² - 2110 + 35 = (220 - 11)(220 + 11) - 4110² - 220 + 35 = 209231 - 48400 - 220 + 35 = 48279 - 48400 - 220 + 35 = -866;

14) (7120 - 7)(7120 + 7) - 49120² - 2120 + 15 = (840 - 7)(840 + 7) - 49120² - 240 + 15 = 833847 - 705600 - 240 + 15 = 705951 - 705600 - 240 + 15 = 126;

15) (470 - 5)(470 + 5) - 1670² + 33 = (280 - 5)(280 + 5) - 1670² + 33 = 275*285 - 78400 + 33 = 78375 - 78400 + 33 = 8;

16) (560 - 10)(560 + 10) - 2560² + 560 - 36 = (300 - 10)(300 + 10) - 2560² + 300 - 36 = 290310 - 45000 + 300 - 36 = 89900 - 45000 + 300 - 36 = 44864;

17) (470 - 7)(470 + 7) - 1670² + 1070 - 36 = (280 - 7)(280 + 7) - 1670² + 700 - 36 = 273287 - 78400 + 700 - 36 = 78351 - 78400 + 700 - 36 = 15.

Таким образом, ответы на все задачи:

1) -581;
2) 1300649;
3) -1072;
4) -264;
5) 484302;
6) -1310;
7) 55799;
8) -605;
9) -204;
10) 211087;
11) 843786;
12) 764716;
13) -866;
14) 126;
15) 8;
16) 44864;
17) 15.