Find the complete set of values of the real constant $k$ for which the expression
$$x^2 + kx + 2x + 1 - 2k$$
is positive for all real values of $x$.
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Find the complete set of values of the real constant $k$ for which the expression

$$x^2 + kx + 2x + 1 - 2k$$

is positive for all real values of $x$.