Use the quadratic formula to solve the equation.x2 + 12x + 19 = 0
A. {6 + 
}
B. {6 - 
, 6 + 
}
C. {-6 - 
, -6 + 
}
D. {-12 + 
}
Answer: C
Mathematics
You might also like to view...
Find the least common multiple.x2 - 16, x - 4
A. x3 + 64 B. (x + 4)(x - 4)2 C. x2 - 16 D. (x - 4)(x2 - 16)
Mathematics
Write the reciprocal of the number.
A. -7
B. 
C. 
D. 
Mathematics
For the given vectors u and v, calculate u ? v.u = 
, v = 
A. 35 B. 12 C. -12 D. 6
Mathematics
Find all the complex roots. Write the answer in the indicated form.The complex fourth roots of -16 (rectangular form)
A. 8
+ 8
i, 8
- 8
i, -8
+ 8
i, -8
- 8
i
B. 2 + i, 2 - i, -2 + i, -2 - i
C. 1 + i, 1 - i, -1 + i, -1 - i
D. 
+ 
i, 
- 
i, - 
+ 
i, - 
- 
i
Mathematics