dawnmccall272 dawnmccall272
  • 01-05-2014
  • Mathematics
contestada

The square of a certain negative number is equal to 5 more than one half of the number what is the number

Respuesta :

Poknoy Poknoy
  • 01-05-2014
the square of a certain negative number is equal to 5 more than one half of that number
what is that number
let x be that number
thus        x²  =  x/2 + 5
               x² - x/2 - 5 =  0
               2x² - x -10 = 0
               (2x-5) (x + 2) =  0
                 x =  5/2    or    - 2
                 so the number is    - 2
Answer Link

Otras preguntas

I just need to know the answer pls
HELPPPPPPPPPP PLEASEEEEEEEE!!!!!!
If I lose 1/10 of something,what fraction do I have left
29=6x-8 What is the value of x
The K.E of a body becomes 4 times its initial value. The new linear momentum will be: (a) Same as initial value (b) Four times the initial value (c) Twice the
Find the coordinates of M, the midpoint of AB, where A and B have the following coordinates: A(2,12), B(8,4)
Harper's parents put $75 into her school lunch money account. Each meal she gets from school costs her $3.25. The school sends Harper's parent's an email when t
Your backpacker's guide contains a grid map of Paris, with each unit on the grid representing 0.125 kilometers. If the Arc de Triomphe is located at (- 3, - 5)
Which of the following sentences is correct? A. Them are twenty students in the class. B. They're twenty students in the class. C. Their are twenty students in
Points A, B, and C are collinear with coordinates A(-2,5), B(1,3), and C (x,-13). What is x?