Solve the equation.x4 - 84x2 + 320 = 0
A. ±3, ±4
B. ±2, ±4
C. ±2, ±4
D. ±2, ±
Answer: B
You might also like to view...
Solve the problem by using three variables.The largest angle of a triangle is 6 times the smallest angle and it is 3 times the other angle. Find the measure of the smallest angle.
A. 40° B. 20° C. 30° D. 10°
Solve the problem.Determine which of the following statements is true.A: If V is a 4-dimensional vector space, then any set of exactly 4 elements in V is automatically a basis for V. B: If there exists a set 
that spans V, then dim V = 5.C: If H is a subspace of a finite-dimensional vector space V, then dim H ? dim V.
A. A and C B. A C. C D. B
Solve the problem.A ship at sea, the Admiral, spots two other ships, the Barstow and the Cauldrew and measures the angle between them at be 45°. They radio the Barstow and by comparing known landmarks, the distance between the the Admiral and the Barstow is found to be 323 meters. The Barstow reports an angle of 59° between the Admiral and the Cauldrew. To the nearest meter, what is the distance between the Barstow and the Cauldrew?
A. 49 m B. 266 m C. 81 m D. 235 m
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = 7x20 - 9x14 - 4x11 + 2x2 - 3x
A. 1 or 3 positive; 0 or 2 negative B. 3 positive; 2 negative C. 1 or 3 positive; 1 or 3 negative D. 0 or 2 positive; 0 or 2 negative