Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.15x3y2 + 16x2y3 + 4xy4
A. x(5xy2 + 2y3)(3x + 2y)
B. xy2(5x + 2y)(3x + 2y)
C. prime
D. y2(5x + 2y)(3x2 + 2xy)
Answer: B
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One solution of a polynomial equation is given. Use synthetic division to find any remaining solutions.-2x3 - 4x2 + 2x + 4 = 0; 1
A. 1, 2 B. -1, 2 C. 1, -2 D. -1, -2
Solve the problem. Round your answer to the nearest tenth, when appropriate.The function defined by 
gives the distance in feet that a car going approximately 
will skid in t seconds. Find the time it would take for the car to skid 
.
A. 10.2 sec B. 10.6 sec C. 9.2 sec D. 10.4 sec
Find the equation of the parabola determined by the given information.Vertex at (4, 4), directrix x = 2
A. x = 
y2 - 1y + 6
B. y = 
x2 - 6x - 24
C. x = 
y2 + 8y + 48
D. y = 
x2 - 1x - 6
Solve the problem.The lower edge of a dam is defined by the parabola (see figure). Use a coordinate system with y = 0 at the bottom of the dam to determine the total force on the dam. Lengths are measured in meters. 
A. 60,963,840 N B. 121,927,680 N C. 13,547,520 N D. 243,855,360 N