Factor the sum or difference of two cubes.250x3 - 128x6
A. 2(5x -4x2)(25x2 + 20x3 + 16x4)
B. 2x3(5 - 4x)(25 + 16x2)
C. 2(5x + 4x2)(25x2 - 20x3 + 16x4)
D. 2x3(5 - 4x)(25 + 20x + 16x2)
Answer: D
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Find area of figure. Round to the nearest hundredth if necessary.
A. 576 ft2 B. 48 ft2 C. 1152 ft2 D. 96 ft2
Solve the problem.The profit function for a product is given by P(x) = -0.7x3 + 115.5x2 - 3710x - 84,000 dollars, where x is the number of units produced and sold. Determine the levels of production and sale that give break-even.
A. 90 or 120 units B. 100 units C. 80 or 100 units D. 120 units
Solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable. -4x - 9y + 9z = -73 12x + 27y - 27z = 219-16x - 36y + 36z = -292
A. 
B. ?
C. 
D. {(7, 7, 2)}
Perform the indicated operation.(4x + 11) - (-14x2 - 2x + 11)
A. -14x2 + 2x + 22 B. 14x2 - 6x C. 14x2 + 6x D. 14x2 + 6x - 22