If $x^{2}+k x+6=(x+2)(x+3)$ for all $x,$ then the value of $k$ is
If $x^{2}+k x+6=(x+2)(x+3)$ for all $x,$ then the value of $k$ is
- A
$5$
- B
$1$
- C
$-1$
- D
$3$
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