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Solving Quadratics Given a Solution

GMAT-BKNTBA

If $x=3$ is a solution for $ x^2+mx+k=0 $, which of the following can be a possible value of $k$?

Assume that $m$ is an integer.

A

$-2$

B

$-1$

C

$0$

D

$1$

E

$2$