WilburnBuonomo WilburnBuonomo
  • 12-06-2015
  • Mathematics
contestada

what are the solutions of the equations x^2+14x=-130? (1point) a.2,-16 b.10,-13 c.-2,16 d.no solution

Respuesta :

konrad509
konrad509 konrad509
  • 12-06-2015
[tex]x^2+14x=-130\\ x^2+14x+49=-81\\ (x+7)^2=-81[/tex]

no solutions in [tex]\mathbb{R}[/tex]

in [tex]\mathbb{C}[/tex]
[tex]x+7=-\sqrt{-81} \vee x+7=\sqrt{-81}\\ x=-7-\sqrt{-81} \vee x=-7+\sqrt{-81}\\ x=-7-9i \vee x=-7+9i\\[/tex]
Answer Link

Otras preguntas

Oxygen gas combines with hydrogen gas to produce water.
Who are some generous people
If you reflect the image over the x - axis, what are the new coordinates of the shape?
What do you think Macbeth will ask the witches, or ask them to do?
a quilt has 18 squares. 1/3 of the squares are blue. what other fractions represent the blue squares?
Doug went to the country fair with $14 in his wallet and $12 dollars in his pocket. If he spent 40% of his money on an admission ticket, how much did the ticket
36% of the 1,035 people who watched the new sequel to a popular action movie thought it was better than the original. Find the mean.A. 238.5B: 662.4C: 15.4D: 37
what was one major effect of the invasion of poland in 1939
What is the range for the function y=x
In what two ways are Mesopotamia and Egypt the same? A) government and advances b) natural defended and floods c) rivers and floods d) economy and artisans