Home
О нас
Products
Services
Регистрация
Войти
Поиск
KitKamor32
@KitKamor32
July 2022
1
4
Report
Помогите решить, кто что может.
Очень нужно.
Хотя бы первые три номера, решить нужно то что в Круглых скобках.
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
sitailokarina
1.
1. (2-b)/b + (b-3)/3b^2 = (3b(2-b) + b - 3) / 3b^2 = (6b - 3b^2 + b - 3) / 3b^2 = (-3b^2 + 7b - 3) / 3b^2
2. [(3c + 9) / 6c] * [2c^4 / (c + 3)] = [3(c+3) * 2c^4] / [6c * (c + 3)] = c^3
3. [(x^2 - y^2) / 6y] / (x - y)^2 = [(x-y)(x+y)] / [6y * (x-y)^2] = (x+y) / [6y * (x-y)]
2.
5/a - [(a / (4-a)) * ((16 - a^2) / a^2)] = 5/a - [a*(4-a)(4+a)] / [(4-a) * a^2] = 5/a - (4+a)/a = (1-a)/a
3.
(x^2 + 14xy + 49y^2)/(x^2 - 49y^2) * (21y - 3x) / (7x^2 + 49xy) = [(x^2 + 14xy + 49y^2) * (21y - 3x)] / [(x^2 - 49y^2) *
(7x^2 + 49xy)] = [(x + 7y)^2 * 3(7y - x)] / [(x-7y)(x+7y) * 7x(x+7y)] = [переставляем местами члены в числителе и меняем знак дроби на противоположный, сокращаем возможное] = -3/(7x)
При x = 9:
-3 / 7*9 = -1 / 21
4.
[(2m/(m+4) + 16/(m^2-4m+16) - (m^3-20m^2)/(m^3+64)] * [(m + 4 - 12m/(m+4)] / (m+4) = [
(2m/(m+4) + 16/(m^2-4m+16) - (m^3-20m^2)/[(m+4)*(m^2-4m+16)]] * [((m+4)^2 - 12m) / (m+4)^2] = [[(2m*(m^2-4m+16)) + 16(m+4) - (m^3-20m^2)] / (m^3+64)] * [((m+4)^2 - 12m) / (m+4)^2] = [(2m^3 - 8m^2 + 32m + 16m + 64 - m^3 + 20m^2) / (m^3 + 64)] * [(m^2 + 8m + 16 - 12m) / (m+4)^2] = [(m^3 + 12m^2 + 48m + 64) / (m^3 + 64)] * [(m^2 - 4m + 16) / (m+4)^2] = [[(m+4) * (m^2 + 8m + 16)] / [(m+4) * (m^2 - 4m + 16)]] * [(m-4)^2 / (m+4)^2] = [(m+4)^2 * (m-4)^2] / [(m^2 - 4m + 16) * (m+4)^2] = (m-4)^2 / (
m^2 - 4m + 16)
1 votes
Thanks 2
More Questions From This User
See All
KitKamor32
August 2022 | 0 Ответы
pomogite pozhalujsta esli mozhno to podrobno zaranee spasibo
Answer
KitKamor32
March 2022 | 0 Ответы
kakoe naibolshee davlenie mozhno izmerit zhidkostnym manometrom ris 178 eslib63d13b3bfec20669afa58e88572b313 66640
Answer
KitKamor32
September 2021 | 0 Ответы
pozhalujsta nuzhno zapolnit tablicu etapy smuty grazhdanskoj vojny nachala 17 v
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 решить, кто что может. Очень нужно. Хотя бы первые три номера, решить ..."
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
1. (2-b)/b + (b-3)/3b^2 = (3b(2-b) + b - 3) / 3b^2 = (6b - 3b^2 + b - 3) / 3b^2 = (-3b^2 + 7b - 3) / 3b^2
2. [(3c + 9) / 6c] * [2c^4 / (c + 3)] = [3(c+3) * 2c^4] / [6c * (c + 3)] = c^3
3. [(x^2 - y^2) / 6y] / (x - y)^2 = [(x-y)(x+y)] / [6y * (x-y)^2] = (x+y) / [6y * (x-y)]
2.
5/a - [(a / (4-a)) * ((16 - a^2) / a^2)] = 5/a - [a*(4-a)(4+a)] / [(4-a) * a^2] = 5/a - (4+a)/a = (1-a)/a
3.
(x^2 + 14xy + 49y^2)/(x^2 - 49y^2) * (21y - 3x) / (7x^2 + 49xy) = [(x^2 + 14xy + 49y^2) * (21y - 3x)] / [(x^2 - 49y^2) * (7x^2 + 49xy)] = [(x + 7y)^2 * 3(7y - x)] / [(x-7y)(x+7y) * 7x(x+7y)] = [переставляем местами члены в числителе и меняем знак дроби на противоположный, сокращаем возможное] = -3/(7x)
При x = 9:
-3 / 7*9 = -1 / 21
4.
[(2m/(m+4) + 16/(m^2-4m+16) - (m^3-20m^2)/(m^3+64)] * [(m + 4 - 12m/(m+4)] / (m+4) = [(2m/(m+4) + 16/(m^2-4m+16) - (m^3-20m^2)/[(m+4)*(m^2-4m+16)]] * [((m+4)^2 - 12m) / (m+4)^2] = [[(2m*(m^2-4m+16)) + 16(m+4) - (m^3-20m^2)] / (m^3+64)] * [((m+4)^2 - 12m) / (m+4)^2] = [(2m^3 - 8m^2 + 32m + 16m + 64 - m^3 + 20m^2) / (m^3 + 64)] * [(m^2 + 8m + 16 - 12m) / (m+4)^2] = [(m^3 + 12m^2 + 48m + 64) / (m^3 + 64)] * [(m^2 - 4m + 16) / (m+4)^2] = [[(m+4) * (m^2 + 8m + 16)] / [(m+4) * (m^2 - 4m + 16)]] * [(m-4)^2 / (m+4)^2] = [(m+4)^2 * (m-4)^2] / [(m^2 - 4m + 16) * (m+4)^2] = (m-4)^2 / (m^2 - 4m + 16)