Home
О нас
Products
Services
Регистрация
Войти
Поиск
KyleSpencer
@KyleSpencer
July 2022
1
6
Report
найдите произведение аб если а^3-b^3= -37 и a-b= -1
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
AnonimusPro
Verified answer
A^3-b^3=(a-b)(a^2+ab+b^2)
a-b=-1 и a^3-b^3=37
поэтому:
-(a^2+ab+b^2)=-37
a^2+ab+b^2=37
выражаем a:
a=b-1
подставим:
(b-1)^2+b(b-1)+b^2=37
b^2-2b+1+b^2-b+b^2-37=0
3b^2-3b-36=0
b^2-b-12=0
D=1+48=49=7^2
b1=(1+7)/2=4
b2=-6/2=-3
a1=4-1=3
a2=-3-1=-4
произведение:
4*3=12
(-3)*(-4)=12
Ответ: 12
4 votes
Thanks 5
More Questions From This User
See All
KyleSpencer
August 2022 | 0 Ответы
kakoe iz vyrazhenij mozhno predstavit v vide i kvadrata i kuba odnochlena a 1000
Answer
KyleSpencer
August 2022 | 0 Ответы
3x15 pomogite pozhalujstaefd4b51988b9582be0d7c99c06878590 46778
Answer
KyleSpencer
August 2022 | 0 Ответы
schitaete li vy sebya tolerantnoj lichnostyu vyberite dva polozhitelnyh kachestvad
Answer
KyleSpencer
July 2022 | 0 Ответы
kakimi kachetsvami haraktera vy hoteli by obladatnapishite v dvuh slovah
Answer
KyleSpencer
July 2022 | 0 Ответы
vyskakivat iz sanej eto perenosnoe znachenie
Answer
KyleSpencer
July 2022 | 0 Ответы
ukazhite kolichestvo slov i slovosochetanij v predlozhenii ego prezhnyaya zhivost pro
Answer
KyleSpencer
July 2022 | 0 Ответы
reshite uravnenie 23 i 41i3 21 29
Answer
KyleSpencer
July 2022 | 0 Ответы
summa treh posledovatelnnyh celyh chisel ravna 27najdite naimenshee iz etih chi
Answer
KyleSpencer
July 2022 | 0 Ответы
summa pyati posledvatelnyh celyh chisel ravna 20 najdite naimenshee iz etih chis
Answer
KyleSpencer
July 2022 | 0 Ответы
a^4+a^2...
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 "найдите произведение аб если а^3-b^3= -37 и a-b= -1..."
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
Verified answer
A^3-b^3=(a-b)(a^2+ab+b^2)a-b=-1 и a^3-b^3=37
поэтому:
-(a^2+ab+b^2)=-37
a^2+ab+b^2=37
выражаем a:
a=b-1
подставим:
(b-1)^2+b(b-1)+b^2=37
b^2-2b+1+b^2-b+b^2-37=0
3b^2-3b-36=0
b^2-b-12=0
D=1+48=49=7^2
b1=(1+7)/2=4
b2=-6/2=-3
a1=4-1=3
a2=-3-1=-4
произведение:
4*3=12
(-3)*(-4)=12
Ответ: 12