Материалы по запросу: x 64x 60
Найдите значение выражения (4x - 15)(4x + 15) - 16x² - 3x - 26 при x = 110 (8x - 8)(8x + 8) - 64x² + 4x - 47 при x = 150 (9x…
- 26 при x = 110 (8x - 8)(8x + 8) - 64x² + 4x - 47 при x = 150 (9x - 8)(9x + 8) - 81x² - 4x + 32 при x = 70 (3x - 16)(3x + 16 ) - 9x² - 8 при x = 70 (7x - 13)(7x + 13) - 49x² - 6x - 29 при x = 100 (9x
Ответ на вопрос
Подставим заданные значения x в выражения:1) (4110 - 15)(4110 + 15) - 16110² - 3110 - 26 = (440 - 15)(440 + 15) - 16*12100 - 330 - 26 = (425)(455) - 193600 - 330 - 26 = 192875 - 193956 = -10812) (8150 - 8)(8150 + 8) - 64150² + 4150 - 47 = (1200 - 8)(1200 + 8) - 64*22500 + 600 - 47 = (1192)(1208) - 1440000 + 600 - 47 = 1440576 - 1440047 = 5293) (970 - 8)(970 + 8) - 8170² - 470 + 32 = (630 - 8)(630 + 8) - 81*4900 - 280 + 32 = (622)(638) - 396900 - 280 + 32 = 396296 - 396148 = 1484) (370 - 16)(370 + 16 ) - 970² - 8 = (210 - 16)(210 + 16) - 94900 - 8 = (194)(226) - 44100 - 8 = 43844 - 44108 = -2645) (7100 - 13)(7100 + 13) - 49100² - 6100 - 29 = (700 - 13)(700 + 13) - 490000 - 600 - 29 = (687)(713) - 490000 - 600 - 29 = 490131 - 490629 = -4986) (970 - 12)(970 + 12) - 8170² - 770 + 44 = (630 - 12)(630 + 12) - 81*4900 - 490 + 44 = (618)(642) - 396900 - 490 + 44 = 396636 - 397346 = -7107) (2120 - 20)(2120 + 20) - 4120² - 10120 - 21 = (240 - 20)(240 + 20) - 57600 - 1200 - 21 = (220)(260) - 57600 - 1200 - 21 = 57200 - 58821 = -16218) (780 - 12)(780 + 12) - 4980² + 780 - 21 = (560 - 12)(560 + 12) - 49*6400 + 560 - 21 = (548)(572) - 313600 - 560 - 21 = 313856 - 314181 = -3259) (5110 - 14)(5110 + 14) - 25*110² - 8 = (550 - 14)(550 + 14) - 27500 - 8 = (536)(564) - 27500 - 8 = 302304 - 27508 = 27479610) (4120 - 5)(4120 + 5) - 16120² + 8120 - 48 = (480 - 5)(480 + 5) - 16*14400 + 960 - 48 = (475)(485) - 230400 - 960 - 48 = 230375 - 231408 = -103311) (8120 - 16)(8120 + 16) - 64120² - 3120 + 2 = (960 - 16)(960 + 16) - 64*14400 - 360 + 2 = (944)(976) - 921600 - 360 + 2 = 921344 - 921942 = -59812) (7130 - 7)(7130 + 7) - 49130² + 3130 - 25 = (910 - 7)(910 + 7) - 49*16900 + 390 - 25 = (903)(917) - 83300 + 390 - 25 = 826551 - 83695 = 74085613) (2110 - 11)(2110 + 11) - 4110² - 2110 + 35 = (220 - 11)(220 + 11) - 4400 - 220 + 35 = (209)(231) - 4400 - 220 + 35 = 48379 - 4585 = 4379414) (7120 - 7)(7120 + 7) - 49120² - 2120 + 15 = (840 - 7)(840 + 7) - 58800 - 240 + 15 = (833)(847) - 58800 - 240 + 15 = 706231 - 59025 = 64720615) (470 - 5)(470 + 5) - 1670² + 33 = (280 - 5)(280 + 5) - 164900 + 33 = (275)(285) - 78400 + 33 = 78375 - 78433 = -5816) (560 - 10)(560 + 10) - 2560² + 560 - 36 = (300 - 10)(300 + 10) - 9000 + 300 - 36 = (290)(310) - 9000 + 300 - 36 = 89900 - 9336 = 8056417) (470 - 7)(470 + 7) - 1670² + 1070 - 36 = (280 - 7)(280 + 7) - 16*4900 + 700 - 36 = (273)(287) - 78400 + 700 - 36 = 78211 - 77736 = 475Ответ:
1) -1081
2) 529
3) 148
4) -264
5) -498
6) -710
7) -1621
8) -325
9) 274796
10) -1033
11) -598
12) 740856
13) 43794
14) 647206
15) -58
16) 80564
17) 475
Еще
82
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Найдите значение выражения (4x - 15)(4x + 15) - 16x² - 3x - 26 при x = 110 (8x - 8)(8x + 8) - 64x² + 4x - 47 при x = 150 (9x…
- 26 при x = 110 (8x - 8)(8x + 8) - 64x² + 4x - 47 при x = 150 (9x - 8)(9x + 8) - 81x² - 4x + 32 при x = 70 (3x - 16)(3x + 16 ) - 9x² - 8 при x = 70 (7x - 13)(7x + 13) - 49x² - 6x - 29 при x = 100 (9x
Ответ на вопрос
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.
Еще
248
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