Question

срочно!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Ответ:

Объяснение:

1) 14x^2 * (x - 2) - (x-2) = 0

(14x^2 - 1)*(x-2) = 0

x = 2

x^2 = 1/14 => x = ±1/√14

2)D = 16 + 20 = 36

x^2-10 = (4 + 6)/2 = 5

x^2 - 10 = -1

x^2 = 15 => x = ±√15

x^2 = 9 => x = ±3

3) D = 64 - 28 = 36

x^2 = (8+6)/2 = 7 => x = ±√7

x^2 = 1 => x = ±1

Answer 2

Ответ:

1) x1≈ -0,267

   x2≈ 0,267

   x3= 2

2) x1= -√15

   x2= -3

   x3= 3

   x4= √15

3) x1= -√7

   x2= -1

   x3= 1

   x4= √7

Объяснение: