\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
For \(P(x) = 4x^3 + 2x^2 - 5x + 1\) and \(Q(x) = x^3 - 3x^2 + 7\), find:
\(P(x) + Q(x)=\)