Which expression is an antiderivative of f(x)=2x+exf(x) = 2x + e^xf(x)=2x+ex?
x2+ex+10x^2 + e^x + 10x2+ex+10
2+ex2 + e^x2+ex
x2+ex+xx^2 + e^x + xx2+ex+x
x2+ex+1x^2 + e^{x+1}x2+ex+1