If 1 and –6 are two of the roots of 6x^4 + 31 x^3 − 33x^2 − 16x + 12, then what are the other two?
A. 2 and 3/2
B. -1 and 6
C. 1/2 and -2/3
D. -2 and 2/3
C. 1/2, -2/3.
Test: Plug the above values into the given Eq; the output should be zero in
each case.