Home
О нас
Products
Services
Регистрация
Войти
Поиск
Nastuha67
@Nastuha67
August 2022
1
5
Report
10х2 + 3х = 1
3х2 - 1 = 2х
(х-2)(х+2)-2х(х-3)=6-х
(х+1)2 = 1 - ( 7 +х)х
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
alexooooon
10x^2 + 3x - 1 = 0;
D = b^2 - 4ac;
D = 3^2 - 4 * 10 * (-1);
D = 9 - -40 = 49;
D > 0, два корня!
x1,2 = (-b ± √D)/2a;
x1:x = (-3 + 7)/2*10;
x = 4/20; |:4
x = 1/5;
x2:x = (-3 - 7)/2*10;
x = -(10/20); |:10
x = -(1/2);
Ответ: 1/5; -(1/2).
3x^2 - 2x - 1 = 0;
D = b^2 - 4ac;
D = -2^2 - 4 * 3 * (-1);
D = 4 - -12 = 16;
D > 0, два корня!
x1,2 = (-b ± √D)/2a;
x1:x = (2 + 4)/2*3;
x = 6/6; |:6
x = 1
x2:x = (2 - 4)/2*3;
x = -(2/6); |:2
x = -(1/3);
Ответ: 1; -(1/3).
-1x^2 + 7x - 10 = 0;
D = b^2 - 4ac;
D = 7^2 - 4 * (-1) * (-10);
D = 49 - 40 = 9;
D > 0, два корня!
x1,2 = (-b ± √D)/2a;
x1:x = (-7 + 3)/2*(-1);
x = -(4/2); |:-2
x = 2;
x2:x = (-7 - 3)/2*(-1);
x = -(10/2); |:-2
x = 5;
Ответ: 2; 5.
В последнем, похоже что нужно было -х(7+х)
2x^2+9x=0
x(2x+9)=0
[x = 0 [x = 0
[2x = -9 [x = -4(1/2)
0 votes
Thanks 0
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 "10х2 + 3х = 1 3х2 - 1 = 2х (х-2)(х+2)-2х(х-3)=6-х (х+1)2 = 1 - ( 7 +х)х..."
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
D = b^2 - 4ac;
D = 3^2 - 4 * 10 * (-1);
D = 9 - -40 = 49;
D > 0, два корня!
x1,2 = (-b ± √D)/2a;
x1:x = (-3 + 7)/2*10;
x = 4/20; |:4
x = 1/5;
x2:x = (-3 - 7)/2*10;
x = -(10/20); |:10
x = -(1/2);
Ответ: 1/5; -(1/2).
3x^2 - 2x - 1 = 0;
D = b^2 - 4ac;
D = -2^2 - 4 * 3 * (-1);
D = 4 - -12 = 16;
D > 0, два корня!
x1,2 = (-b ± √D)/2a;
x1:x = (2 + 4)/2*3;
x = 6/6; |:6
x = 1
x2:x = (2 - 4)/2*3;
x = -(2/6); |:2
x = -(1/3);
Ответ: 1; -(1/3).
-1x^2 + 7x - 10 = 0;
D = b^2 - 4ac;
D = 7^2 - 4 * (-1) * (-10);
D = 49 - 40 = 9;
D > 0, два корня!
x1,2 = (-b ± √D)/2a;
x1:x = (-7 + 3)/2*(-1);
x = -(4/2); |:-2
x = 2;
x2:x = (-7 - 3)/2*(-1);
x = -(10/2); |:-2
x = 5;
Ответ: 2; 5.
В последнем, похоже что нужно было -х(7+х)
2x^2+9x=0
x(2x+9)=0
[x = 0 [x = 0
[2x = -9 [x = -4(1/2)