Question

ПОМОГИТЕ ПРОШУ!!!ОЧЕНЬ СИЛЬНО НУЖНО!!!ДАЮ ВСЕ СВОИ БАЛЛЫ

Answer 1

Пошаговое объяснение:

$1)2.5 {x}^{2} - 10 = 0 \\ 2.5 {x}^{2} = 10 \\ {x}^{2} = 4 \\ \\ x1 = - 2 \\ x2 = 2 \\ \\ 2) - 1.5 {x}^{2} + 24 = 0 \\ 1.5 {x}^{2} = 24 \\ {x}^{2} = 16 \\ \\ x1 = 4 \\ x2 = - 4 \\ \\ 3)4 {x}^{2} + 6x = 0 \\ x(4x + 6) = 0 \\ \\ 4x + 6 = 0 \\ 4x = - 6 \\ \\ x1 = 0\\ x2 = - 1.5 \\ \\ 4)2 {x}^{2} - 5x = 0 \\ x(2x - 5) = 0 \\ \\ 2x - 5 = 0 \\ 2x = 5 \\ \\ x1 = 2.5 \\ x2 = 0$

Answer 2

Ответ:

Пошаговое объяснение:

2,5x^2 - 10 = 0

2,5x^2 = 10

x^2 = 4

x = -2

x = 2

-1,5 x^2 + 24 = 0

1,5x^2 = 24

x^2 = 16

x = 4

x = -4

4x^2 + 6x = 0

x (4x+6) =0

x=0

4x+6 = 0       4x = -6       x= -6/4   x = -1.5

2x^2  - 5x =0

x (2x - 5)=0

x = 0

2x = 5         x =  2.5