Предмет: Алгебра, автор: gfhdhdhdh

решите пожалуйста по действиям и по дискрименанту
1)
$x {}^{2} - 5x + 4 = 0$
2)
$x {}^{2} + 14x + 48 = 0$

aleksandryuha: 2)D=b^2-4ac=14^2-4*1*48=196-192=4
X1,2=-14+-2/2
X1=-14+2/2=-6
X2=-14-2/2=-8

Ответы

Автор ответа: ВладимирБ

Ответ:

Объяснение:

...............................

Приложения:

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Валя11

Write a tag for each sentence.

1.He is at home,.......................?

2.She is ill,...........................?

3.They are in the fifth form,..............................?

4.You are a pupil,........................?

5.He is ten,.........................?

6.He isn"t hungry,...........................?

7.She isn"t a pupil,.........................................?

8.They aren"t difficult,..................................?

9.You are not cold,............................?

10.He is not tired,.........................?

11.Tom is shorter than Jack,.........................?

12.Helen is cleveler than her frind,................................?

13.Mr Blak is yuonger than Mr Smith,........................?

14.Helen"s bike is older than Kete"s bike,..........................?

15.The apple is testerthan the pear,..................?

16.Mary isn"t at school,.........................?

17.Tom isn"t here today,........................?

18.Kate"s son isn"t a pupil,.....................?

19.It isn"t cold today,.................?

20.Maths is difficult,..............?

21.He was in London last autumn,..............................?

22.She was at the zoo last Suturday,.....................?

23.They wery busy,..............................?

24.The boys were at the stadium,........................?

25.Bill was at home,......................?

26.They weren"t happy there,..................?

27.Robert"s grandparent weren"t in Great Britain last year,...................?

28.Frank wasn"t in the country,............................?

29.It isn"t cold,...........................?

30.It"s cold today,...........................?

31.it is cold,.......................?

32.It is nice cat,.....................?

33.There is a cat in the box,...........................?

34.There is book on the desk,.......................?

35.There is blackboard there,........................?

36.There is an exercise-book,.......................?

37.It is your exercise-book,.............................?

38.The cake is on the table,...........................?

39.There is a cake on the table,...................?

40.The ball is under the table,.......................?

2 года назад

Предмет: Русский язык, автор: данилкаs

ПРОЧИТАЙТЕ. ВСТАВЬТЕ В ЗВУКОВЫЕ "ДОМИКИ" ПРОПУЩЕННЫЕ ЗВУКИ. [_] - ТВЕРДЫЕ НЕПАРНЫЕ ШИПЯЩИЕ СОГЛАСНЫЕ ЗВУКИ. [_] -МЯГКИЕ - НЕПАРНЫЕ ШИПЯЩИЕ СОГЛАСНЫЕ ЗВУКИ.

решите пожалуйста по действиям и по дискрименанту 1) 2) ​

Ответы

решите пожалуйста по действиям и по дискрименанту
1)
$x {}^{2} - 5x + 4 = 0$
2)
$x {}^{2} + 14x + 48 = 0$