Real and Equal Roots
Source:
February 7, 2009
Problem Statement
The values of for which the equation 2x^2\minus{}kx\plus{}x\plus{}8\equal{}0 will have real and equal roots are:
(A)\ 9 \text{ and }\minus{}7 \qquad
(B)\ \text{only }\minus{}7 \qquad
(C)\ \text{9 and 7} \\
(D)\ \minus{}9 \text{ and }\minus{}7 \qquad
(E)\ \text{only 9}