Solve the equation by completing the square.x2 + 12x + 61 = 0
A. {-6 - 25i, -6 + 25i}
B. {-11, -1}
C. {-6 - 5i, -6 + 5i}
D. {-6 + 5i}
Answer: C
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Find the solution for x of the equation
.
?
A. 
B. ?
C. ?
D. There is no solution.
Use either the binomial theorem or Pascal's Triangle to expand the binomial.(x + 2)4
A. x4 + 8x3 + 24x2 + 8x + 16 B. x4 + 8x3 + 24x2 + 32x + 16 C. x4 + 8x3 + 16x2 + 32x + 16 D. x4 + 2x3 + 24x2 + 16x + 16
Solve the problem.What conditions, when present, are sufficient to conclude that a function f(x) has a limit as x approaches some value of a?
A. f(a) exists, the limit of 
as 
from the left exists, and the limit of 
as 
from the right exists.
B. The limit of 
as 
from the left exists, the limit of 
as 
from the right exists, and at least one of these limits is the same as f(a).
C. The limit of 
as 
from the left exists, the limit of 
as 
from the right exists, and these two limits are the same.
D. Either the limit of 
as 
from the left exists or the limit of 
as 
from the right exists
Simplify the expression. Write answer with positive exponents.
A. 915
B. 
C. 
D. 93