Системы уравнений : 1) (х-у+14 (х²+у²=26 2) (х-у=7 (ху=12. Created by arishafilimonova. algebra-ru

Системы уравнений : 1) (х-у+14 (х²+у²=26 2) (х-у=7 (ху=12...

arishafilimonova @arishafilimonova

July 2022 1 19 Report

Системы уравнений :
1) (х-у+14
(х²+у²=26

2) (х-у=7
(ху=12

Answers & Comments

sedinalana

Verified answer

1) (х-у=14⇒x=y+14
(х²+у²=26
(y+14)²+y²=26
y²+28y+196+y²-26=0
2y²+28y+170=0
y²+14y+85=0
D=196-340=-144
нет решения

2) (х-у=7⇒x=y+7
(ху=12
y(y+7)=12
y²+7y-12=0
D=49+48=97
y1=(-7-√97)/2⇒x1=(-7-√97)/2+7=(7-√97)/2
y2=(-7+√97)/2⇒x2=(7+√97)/2

1 votes Thanks 1

1vse slova v kotoroj yavlyayutsya sushestvitelnymi obshego roda agryaznulyayabedaso

Answer

Answers & Comments

Verified answer

4 ukazhite slovo bez okonchaniya a parohod b lektorij v peredumal g ulybnulas d

najdite koordinaty summy vektorov a b i raznosti vektorov a b vektor a01

1ukazhite slovo v kotorom vse soglasnye zvonkie asneg bgrad vsanni gbelyj d

1vse slova v kotoroj yavlyayutsya sushestvitelnymi obshego roda agryaznulyayabedaso

рекомендуемые вопросы

Helpful Links

Helpful Social