Answer
$-x^2-x+7$
Work Step by Step
RECALL:
$(G-F)(x) = G(x)-F(x)$
Using the formula above gives:
$(G-F)(x)
\\= G(x)-F(x)
\\=(5-x)-(x^2-2)
\\=5-x-x^2-(-2)
\\=5-x-x^2+2
\\=-x^2-x+7$
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