Автор - hay123456789

Помогите, пожалуйста.

Ответ

Автор - MrSolution

Задача 2:

5 -  frac{1 - 2a}{4}  =  frac{3a + 20}{6}  +  frac{a}{3}  \  frac{20 - 1  +  2a}{4}  =  frac{9a + 60 + 6a}{18}  \ 18(19  + 2a) = 4(15a + 60) \ 171  +  18a = 30a + 120 \ 12a = 51 \ a =  frac{51}{12}  \ a = 4.25

Задача 3:

 {(3x - 1)}^{2}  - (4 {x}^{2}  + 5x - 5) + (4 + 7x)(x - 2) = 9 {x}^{2}  - 6x + 1 - 4 {x}^{2}  - 5x + 5 + 4x - 8 + 7 {x}^{2}  - 14x = 12 {x}^{2}  - 21x - 2

Задача 4:

 {a}^{5} ( {a}^{4} )^{3}  div  {a}^{11}  =  {a}^{17}  div  {a}^{11}  =  {a}^{6} \  {a}^{6}   = {2}^{6}  = 64

Ответы и объяснения

Сервис носит ознакомительный характер, вся информация, а в частности вопросы и ответы, которые задают и отвечают пользователи.
© 2025 Все права защищены Политика конфиденциальности Контакты
search points attachment profile arrow left arrow right star heart verified symbols equation arrow-down question mark check menu accountancyadministrationagriculturalalgebraallarabicartart_musicbelarusbelarus_altbiologybusinesscatalachemistrychineseeconomicsegzamenglishentrepreneurshipenvironmentethicseuskarafirst_aidfrenchgalegogeographygeologygeometrygermangrammarhealthhistoryindia_langindonesian_langinformaticsitalianjapanesekazachkazach_altkoreanlanguagelatinlawlife_scienceliteraturelogicmathematicsmusicnigerian_langother_languagesotherspedagogicsphilosophyphysical_educationphysicspoliticspsychologyreligionrpa_langrussianrussian_altsciencesecurityskillssocial_sciencesociologyspanishstatisticstechnologytourismtrafficukrainianukrainian_altukrainian_literaturewos_civilisation accountancyadministrationagriculturalalgebraall_1arabicartart_music_2belarusbelarus_altbiologybusiness_2catalachemistry_1chineseeconomicsexam_3englishentrepreneurshipenvironment_2ethicseuskarasecurity_1frenchgalegogeography_4geology_4geometrygermangrammarhealthhistoryindia-langindonesian-langinformaticsitalianjapanesekazachAsset 230koreanlanguagelatinlawlife-scienceliteraturelogic_2mathematicsmusicnigerian-langotherlanguagesother_1pedagogicsphilosophyphysical_educationphysicspoliticspsychologyreligion_1rpa-langrussianrussian_altsciencesecurity_3_mskills_1allsocial_science_5_msociologyspanishstatisticstechnologytourismtrafficukrainianukrainian_altukrainian_literaturewos_civilisation