Factor the trinomial completely. If the polynomial cannot be factored, write "prime."x2 + 5xy - 14y2
A. (x - y)(x + 2y)
B. (x - 7y)(x + y)
C. (x + 7y)(x - 2y)
D. (x - 7y)(x + 2y)
Answer: C
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Set up the iterated integral for evaluating 
Dover the given region D.D is the solid right cylinder whose base is the region in the xy-plane that lies inside the cardioid 
and outside the circle 
and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
The augmented matrix is in row-echelon form and represents a system of linear equations. Solve the system using backward substitution.
Write the solution as an ordered triple, if possible.
A. (24, -13, 5) B. No solution C. (9, -13, 5) D. (26, -14, 5)
Use the quadratic formula to solve the given equation.(x + 7)(x - 1) = -4
A. -3 ± 
B. 3 ± 
C. 3 ± 
D. -3 ± 
Solve the compound inequality. Express the solution using interval notation or state that there is no solution.-3x + 1 ? 7 or 6x + 3 ? -21
A. [-2,?) B. [-4,?) C. [-4,-2] D. (-?,?)