rockwell1919
rockwell1919 rockwell1919
  • 19-04-2020
  • Mathematics
contestada

Solve x2 + 12x + 6 = 0 using the completing-the-square method.
Ox= 6 + V30
Ox= 6+ V30
Ox= 60 V6
Ox= 6 + V6

Respuesta :

nktselepov
nktselepov nktselepov
  • 19-04-2020

[tex] {x}^{2} + 12x + 6 = 0 \\ D = {12}^{2} - 4 \times 6 = 144 - 24 = 120 = \\ = (2 \sqrt{30} )^{2} \\ x_1= \frac{ - 12 + 2 \sqrt{30} }{2} = - 6 + \sqrt{30} \\ x_2= \frac{ - 12 - 2 \sqrt{30} }{2} = - 6 - \sqrt{30} [/tex]

But i don't see correct answer here

Ox= 6 + V30

Ox= 6+ V30

Ox= 60 V6

Ox= 6 + V6

or maybe i don't understend something

Answer Link

Otras preguntas

Find the area and perimeter. Hint: The height of a non-right triangle is the length of the segment of a line that is perpendicular to the base and that contains
the function h(x) is a transformation of the square root parent function
Is there one civic duty that is more important than another? If so, which one do you think it is and why?
how does corruption impact on service delivery?​
HELP ASAP PLEASE HELP FAST
What was the name of the largest city in the Mississippian Empire? Cuzco Cahokia natchez
solve the equation. g - 16 = 8 g =
Explain at least two reasons why some people want to change Columbus Day to Indigenous Peoples Day.​
Given (x - 1)2 = 50, select the values of x. X = -49 x = 51 x = 1+5./ x = 1-5V
cosA_1+sin1 + 1+sinA_cosA=2secA​