IvyLudemann659 IvyLudemann659
  • 11-06-2014
  • Mathematics
contestada

In the equation x^2 + mx + n = 0, m and n are integers.
The only possible value for x is –3. What is the value
of m ?
A. 3
B. –3
C. 6
D. –6
E. 9

Respuesta :

konrad509
konrad509 konrad509
  • 11-06-2014
[tex]-3=-\frac{b}{2a}\\ -3=-\frac{m}{2}\\ -6=-m\\ m=6[/tex]

C
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