Решите систему 2у-х=7 Х²-ху-у²=29. Created by maks2965. algebra-ru

Решите систему 2у-х=7 Х²-ху-у²=29...

August 2022 1 2 Report

Решите систему
2у-х=7
Х²-ху-у²=29

Answers & Comments

kak1234567 X = 2y - 7
(2y - 7)^2 - (2y - 7) - y^2 = 29
4y^2 - 28y + 49 -2y + 7 -y^2 = 29
3y^2 - 30y + 27 =0 /3
y^2 - 10y + 9 = 0
D1 = 25 - 1 × 9 = 16
y1 = 9 y2 = 1

x1 = 2 × 9 - 7 = 11
x2 = 2 × 1 - 7 = -5

3 votes Thanks 7

luchshaya procedura chtoby izbavitsya ot fajla dannyh i sdelat ego chrezvychajno tru

Answer

maks2965 August 2022 | 0 Ответы

2-1=?...

Answer

maks2965 July 2022 | 0 Ответы

pomogite reshit geometriya 9 klass na storonah bc i cd parallelogramma abcd vzyat

Answer

maks2965 July 2022 | 0 Ответы

yavlyaetsya li chlenom predlozheniya slovo odin vse byli chem to zanyaty odin grisha

Answer

maks2965 July 2022 | 0 Ответы

v kakih predlozheniyah na meste nuzhno postavit tire a sladkaya bulka vse

Answer

maks2965 July 2022 | 0 Ответы

ustanovite sootvetstvie primery slov a tushnka b morzhvyj v zavlecht g

Answer

Answers & Comments

luchshaya procedura chtoby izbavitsya ot fajla dannyh i sdelat ego chrezvychajno tru

2-1=?...

pomogite reshit geometriya 9 klass na storonah bc i cd parallelogramma abcd vzyat

v ravnobedrennuyu trapecii u kotgroj bokovaya storona ravna 95 sm a ploshad 57

pomogite s zadaniem zadanie na fotob07bfeba563558ae4f11fd68b5205e09 7119

pomogite s zadaniem zadanie na foto406d37f8748af714fd7aa14e3cb1d99c 73713

pozhalujsta pomogite mnogo zadali a nado sdat zavtra szhat teks vot sam teks

yavlyaetsya li chlenom predlozheniya slovo odin vse byli chem to zanyaty odin grisha

v kakih predlozheniyah na meste nuzhno postavit tire a sladkaya bulka vse

ustanovite sootvetstvie primery slov a tushnka b morzhvyj v zavlecht g

рекомендуемые вопросы

Helpful Links

Helpful Social