For what values of K does the polynomial s4+8s3+24s2+32s+K=0 have roots with zero real parts?
A. 10
B. 20
C. 40
D. 80
Answer:D
For what values of K does the polynomial s4+8s3+24s2+32s+K=0 have roots with zero real parts?
A. 10 B. 20 C. 40 D. 80