Answer
$g(-1) + f(-1) = -5$
Work Step by Step
$g(-1) + f(-1) = [(-1)^{2} + 3(-1)+4] + [2(-1) - 5]$
$= [1 - 3 + 4] + [-2-5]$
$= 2 - 7$
$= -5$
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