Find the zeros of f(x), given that one zero is k.f(x) = x4 - 12x2 - 64
k = -2i
A. ±2i, ±8
B. ±2i, ±4i
C. ±2i, ±8i
D. ±2i, ±4
Answer: D
You might also like to view...
Solve the problem.Using the formula to find Fahrenheit (F) in terms of Celsius (C), F = 
C + 32, find the range (to the nearest tenth) of the Fahrenheit temperature when the range of the Celsius temperature is between 4° and 7°C, inclusive. Round to the nearest unit.
A. Between 34°F and 33°F, inclusive B. Between 7°F and 13°F, inclusive C. Between 39°F and 45°F, inclusive D. Between 23°F and 29°F, inclusive
Solve the problem. Round your answer, if appropriate.As the zoom lens in a camera moves in and out, the size of the rectangular image changes. Assume that the current image is 6 cm × 5 cm. Find the rate at which the area of the image is changing (dA/df) if the length of the image is changing at 0.8 cm/s and the width of the image is changing at 0.1 cm/s.
A. 10.6 cm2/sec B. 9.2 cm2/sec C. 5.3 cm2/sec D. 4.6 cm2/sec
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set.2x + 6y + 4z = 32x + 3y + 2z = -16x + y + z = -2
A. {(-2, 5, -4)} B. Cramer's rule does not apply since D = 0; {(2z-1, z + 2, z)} C. {(5, -4, -2)} D. Cramer's rule does not apply since D = 0; ?
Factor by grouping.15x2 - 20x + 12x - 16
A. (15x - 4)(x + 4) B. (15x + 4)(x - 4) C. (5x + 4)(3x - 4) D. (5x - 4)(3x + 4)