Home
О нас
Products
Services
Регистрация
Войти
Поиск
Nastya14545
@Nastya14545
July 2022
1
4
Report
Помогите пожалуйста решить ... № 7 (6). № 8 (2)(3). № 9 (2)(4)
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
flsh
№ 7 (6)
(... - 5b²)³ = ... - 15a²b⁸ + ... - ...
Перед нами разложение по формуле куб разности: (x - y)³ = x³ - 3x²y + 3xy² - y³.
Получаем окончательно:
(ab³ - 5b²)³ = a³b⁹ - 15a²b⁸ + 75ab⁷ - 125b⁶
№ 8 (2)
(a - 2b)³ - (a + b)²(a - 8b) = 27ab²
(a - 2b)³ - (a² + 2ab +b²)(a - 8b) = 27ab²
a³ - 6a²b + 12ab² - 8b³ - a³ + 8a²b - 2a²b + 16ab² - ab² + 8b³ = 27ab²
№ 8 (3)
(5x + y)³ - y(5x - y)² - 25x(x + y)² = 100x³
(5x + y)³ - y(25x² - 10xy + y²) - 25x(x² + 2xy + y²) = 100x³
125x³ + 75x²y + 15xy² + y³ - 25x²y + 10xy² - y³ - 25x³ - 50x²y - 25xy² = 100x³
№ 9 (2)
(8x - 3)²x - (4x - 1)³ = 7
(64x² - 48x + 9)x - (64x³ - 48x² + 12x - 1) = 7
64x³ - 48x² + 9x - 64x³ + 48x² - 12x + 1 = 7
-3x = 6
x = -2
№ 9 (4)
(4y - 3)³ - y(8y - 9)² = 0
64y³ - 144y² +108y - 27 - 64y³ + 144y² - 81y = 0
27y - 27 = 0
y = 1
1 votes
Thanks 3
More Questions From This User
See All
Nastya14545
July 2022 | 0 Ответы
kakoe izobrazhenie mozhno poluchit pri pomoshi dvoyakovypukloj linzy 1 uvelichennoe
Answer
Nastya14545
July 2022 | 0 Ответы
na risunkah predstavleny soedineniya odinakovyh rezistorov soprotivleniem po 2 o
Answer
Nastya14545
July 2022 | 0 Ответы
koordinaty dvuh materialnyh tochek izmenyayutsya po zakonam h1 9 4t t2 i h2
Answer
Nastya14545
July 2022 | 0 Ответы
na telo dejstvuyut chetyre sily moduli kotoryh f1 3 n f2 4 n f3 5 n i f4
Answer
Nastya14545
July 2022 | 0 Ответы
na risunke dany grafiki zavisimosti skorosti ot vremeni dlya dvuh tel dvizhushihsya
Answer
Nastya14545
July 2022 | 0 Ответы
na risunke predstavlen grafik zavisimosti skorosti ot vremeni tela massoj 2 kg
Answer
Nastya14545
July 2022 | 0 Ответы
ustanovite sootvetstvie mezhdu polozheniem predmeta i ego izobrazheniem
Answer
Nastya14545
July 2022 | 0 Ответы
raspolozhite v hronologicheskoj posledovatelnosti sleduyushie istoricheskie sobytiyac777aa8416e6084848d36ce995306608 38127
Answer
Nastya14545
July 2022 | 0 Ответы
ustanovite sootvetstvie mezhdu fizicheskimi yavleniyami i ih obyasneniem nekotorye
Answer
Nastya14545
October 2021 | 0 Ответы
analiz stihotvoreniya tolko on ne vernulsya iz boya vladimir vysockij
Answer
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "Помогите пожалуйста решить ... № 7 (6). № 8 (2)(3). № 9 (2)(4)..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
(... - 5b²)³ = ... - 15a²b⁸ + ... - ...
Перед нами разложение по формуле куб разности: (x - y)³ = x³ - 3x²y + 3xy² - y³.
Получаем окончательно:
(ab³ - 5b²)³ = a³b⁹ - 15a²b⁸ + 75ab⁷ - 125b⁶
№ 8 (2)
(a - 2b)³ - (a + b)²(a - 8b) = 27ab²
(a - 2b)³ - (a² + 2ab +b²)(a - 8b) = 27ab²
a³ - 6a²b + 12ab² - 8b³ - a³ + 8a²b - 2a²b + 16ab² - ab² + 8b³ = 27ab²
№ 8 (3)
(5x + y)³ - y(5x - y)² - 25x(x + y)² = 100x³
(5x + y)³ - y(25x² - 10xy + y²) - 25x(x² + 2xy + y²) = 100x³
125x³ + 75x²y + 15xy² + y³ - 25x²y + 10xy² - y³ - 25x³ - 50x²y - 25xy² = 100x³
№ 9 (2)
(8x - 3)²x - (4x - 1)³ = 7
(64x² - 48x + 9)x - (64x³ - 48x² + 12x - 1) = 7
64x³ - 48x² + 9x - 64x³ + 48x² - 12x + 1 = 7
-3x = 6
x = -2
№ 9 (4)
(4y - 3)³ - y(8y - 9)² = 0
64y³ - 144y² +108y - 27 - 64y³ + 144y² - 81y = 0
27y - 27 = 0
y = 1