Level:
Project ID:
9000022803
Accepted:
1
Clonable:
0
Easy:
0
Establish the values of the parameter \(t\)
which ensure that the equation
\[
x^{2} + tx + t + 8 = 0
\]
with an unknown \(x\)
has complex solutions with a nonzero imaginary part.
\(\left (-4,8\right )\)
\(\left [ -4,8\right ] \)
\(\left (-\infty ,-4\right )\cup \left (8,\infty \right )\)
\(\left (-\infty ,-4\right ] \cup \left [ 8,\infty \right )\)