Factor, if possible.2x6 + 14x5 - 16x4
A. x4(2x - 2)(x + 8)
B. 2x4(x2 + 7x - 8)
C. x4(x - 1)(2x + 16)
D. 2x4(x - 1)(x + 8)
Answer: D
Mathematics
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Solve the problem.A water tank can be filled in 8 minutes and emptied in 9 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 4
minutes
B. 72 minutes
C. 
minutes
D. 
minutes
Mathematics
Find the slope of the line and sketch its graph.2x + 5y = 14 
A. slope = - 
B. slope = 
C. slope = - 
D. slope = 
Mathematics
Factor the polynomial by grouping.x2 + 5x + 8x + 40
A. (x - 5)(x - 8) B. (x + 5)(x + 8) C. (x - 5)(x + 8) D. prime
Mathematics
Solve the system of equations by the substitution method.
A. (4, -4) B. (-4, -3) C. (3, -3) D. no solution
Mathematics