ShadowWolf18
ShadowWolf18 ShadowWolf18
  • 26-10-2016
  • Mathematics
contestada

Which equation has the solutions x=(-3+or- -/3i)/2?

A. 2x2 + 6x + 9 = 0
B. x2 + 3x + 12 = 0
C. x2 + 3x + 3 = 0
D. 2x2 + 6x + 3 = 0

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 26-10-2016
(x - (-3 + 3i)/2)(x - (-3 - 3i)/2) = 0
(x + (3 - 3i)/2)(x + (3 + 3i)/2) = 0
(2x + 3 - 3i)(2x + 3 + 3i) = 0
4x^2 + 6x + 6ix + 6x + 9 + 9i - 6ix - 9i + 9 = 0
4x^2 + 12x + 18 = 0
2x^2 + 6x + 9 = 0

Option A is the correct answer.
Answer Link

Otras preguntas

Differentiate: f(x) = 3x ln(6x) − 3x
0.88 belongs to: a) natural numbersb) integers c) rational numbers d) irrational numbers e) real numbers
Why is carbon is considered tetravalent?
What impact did events in Russia have on the need for American land forces in Europe?
Do you think the buoyant force would be greater or smaller if the gold cube were suspended in water? Explain your answer.
12v+14+10v=80 combine Like terms again
3 pumps, working 6 hours a day, can empy a water tank in 2 days. How many hours a day must 9 pumps work to empty the same tank in 1 day?
Which statement about Shays Rebellion is false?A. The central government provided troops to quell the rebellionB. Daniel Shays resigned from the Continental Arm
How do I convert 14.8 cm into MEters?
Which factor helps determine weather patterns across South America?