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Cannot be simplified
if f(x) = $x^{2}$ + x - 2 and g(x) = x - 3, solve f(g(x)).
f(g(x)) = $x^{2}$ - 3
f(g(x)) = $x^{2}$ + 2x - 5
f(g(x)) = $x^{2}$ + x - 3
f(g(x)) = $x^{2}$ - 5x + 4
f(g(x)) = $x^{2}$ + 1
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