Kathy521 Kathy521
  • 02-10-2017
  • Mathematics
contestada

How do I solve for r in the following equation?
r+3/r=-4

Respuesta :

Newtion Newtion
  • 02-10-2017
I don't understand exactly what you mean, so there are two options

1.
[tex]\displaystyle \frac{r+3}{r} =-4\\\\r+3=-4r\\\\3=-5r\\\\r=- \frac{3}{5} [/tex]

2.
[tex]\displaystyle r+\frac{3}{r} =-4\\\\r^2 +3=-4r\\\\r^2+4r+3=0\\\\r_{1,2}= \frac{-4\pm \sqrt{16-12} }{2}= \frac{-4\pm 2}{2} =(-3), (-1)[/tex]
Answer Link

Otras preguntas

Who fulfills the witches prophecy in macbeth
What is the main function of using the spectroscope??
Can someone help in this problem
Where did most african americans migrate by 1930s??
Cuánto es 7 octavos más un medio
Write an article about halloween
Your mentor asks you to determine if the mutants belong to the same complementation group. what is true about flies that belong to the same complementation grou
Find the equation, in standard form, of the line passing through the points (3,-4) and (5,1)
Isabella works for an environmental safety group. Her group wants to answer the question "To what lengths must we go to protect plants and animals?" Why is her
Which statement is an example of a theme? A.Kari falls in love with Bryan, but he doesn't love her and she is heartbroken. B.It is better to have loved and lo