Home
О нас
Products
Services
Регистрация
Войти
Поиск
gvsxx
@gvsxx
March 2022
1
9
Report
223.Вычислите.
224.Упростите выражение и найдите го значение
Тема: формулы сокращеного умножения. Помогите пожалуйста!!!!
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
LopaAnt
223
1). ...=
=
2)...=
=
3)...=
=
4)...=
=
224
1). 2a^3 + 9 - 2(a+1)(a^2 - a + 1) = 2a^3 + 9 - 2(a^3 + 1) = 2a^3 + 9 - 2a^3 - 2 = 7
2). x(x+2)(x-2) - (x-3)(x^2+3x+9) = x(x^2 - 4) - (x^3 - 27) = x^3 - 4x - x^3 + 27 = -4x + 27 при х = 1/4: -4*1/4 + 27 = -1 + 27 = 26
3). 3(b-1)^3 + (b+2)(b^2-2b+4) - (b+1)^3 = 3(b^3 - 3b^2 + 3b - 1) + b^3 + 8 - (b^3 + 3b^2 + 3b + 1) = 3b^3 - 9b^2 + 9b - 3 + b^3 + 8 - b^3 - 3b^2 - 3b - 1 = 3b^3 - 12b^2 + 6b + 4
при b = -1/3
-3/27 - 12/9 - 6/3 + 4 = - 1/9 - 12/9 - 18/9 + 4 = -31/9 + 4 = (36-31)/9 = 5/9
4). (a-1)^3 - 4a(a+1)(a-1) + 3(a-1)(a^2+a+1) = a^3 - 3a^2 + 3a - 1 - 4a(a^2 - 1) + 3(a^3 - 1) = a^3 - 3a^2 + 3a - 1 - 4a^3 + 4 + 3a^3 - 3 = - 3a^2 + 3a
при а = -2
-3 * 4 + 3 * (-2) = -12 -6 = -18
3 votes
Thanks 5
More Questions From This User
See All
gvsxx
July 2022 | 0 Ответы
ay22a2 a3 2y2 razlozhit na mnozhitelizaranee spasibo
Answer
gvsxx
July 2022 | 0 Ответы
pozhalujsta napishite sochinenie na temu moe lyubimoe zhivotnoe na kazahskom yazyke
Answer
gvsxx
July 2022 | 0 Ответы
berilgen szderdi alau rajda tueldeizder slovogt ashu
Answer
gvsxx
July 2022 | 0 Ответы
b 1 k znamenatelyu 4b 4
Answer
gvsxx
October 2021 | 0 Ответы
v vozrastayushej arifmeticheskoj progressii summa pervyh vosmi chlenov88 a summa
Answer
gvsxx
September 2021 | 0 Ответы
letom my ezdim na dachu tam my s papoj vsegda zharim shashlyki i kushaem arbuz mne
Answer
gvsxx
September 2021 | 0 Ответы
kak na kazahskom budet mama vsegda beret ssoboj chto nibud poest poest
Answer
gvsxx
August 2021 | 0 Ответы
dva kommersanta sostavili biznes plan dlya ego vypolneniya pervyj kommersant vlozh
Answer
gvsxx
August 2021 | 0 Ответы
razglyadyval razbor po sostavu
Answer
gvsxx
August 2021 | 0 Ответы
perimetr treugolnika raven 51sm otnoshenie dliny pervoj storony k dline vtoroj
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 "223.Вычислите. 224.Упростите выражение и найдите го значение Тема: формулы сокра..."
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)...= =
3)...= =
4)...= =
224
1). 2a^3 + 9 - 2(a+1)(a^2 - a + 1) = 2a^3 + 9 - 2(a^3 + 1) = 2a^3 + 9 - 2a^3 - 2 = 7
2). x(x+2)(x-2) - (x-3)(x^2+3x+9) = x(x^2 - 4) - (x^3 - 27) = x^3 - 4x - x^3 + 27 = -4x + 27 при х = 1/4: -4*1/4 + 27 = -1 + 27 = 26
3). 3(b-1)^3 + (b+2)(b^2-2b+4) - (b+1)^3 = 3(b^3 - 3b^2 + 3b - 1) + b^3 + 8 - (b^3 + 3b^2 + 3b + 1) = 3b^3 - 9b^2 + 9b - 3 + b^3 + 8 - b^3 - 3b^2 - 3b - 1 = 3b^3 - 12b^2 + 6b + 4
при b = -1/3
-3/27 - 12/9 - 6/3 + 4 = - 1/9 - 12/9 - 18/9 + 4 = -31/9 + 4 = (36-31)/9 = 5/9
4). (a-1)^3 - 4a(a+1)(a-1) + 3(a-1)(a^2+a+1) = a^3 - 3a^2 + 3a - 1 - 4a(a^2 - 1) + 3(a^3 - 1) = a^3 - 3a^2 + 3a - 1 - 4a^3 + 4 + 3a^3 - 3 = - 3a^2 + 3a
при а = -2
-3 * 4 + 3 * (-2) = -12 -6 = -18