Which expression is the indefinite integral of ex+5e^x + 5ex+5?
ex+5x+Ce^x + 5x + Cex+5x+C
ex+5+Ce^x + 5 + Cex+5+C
ex+Ce^x + Cex+C
ex+5x22+Ce^x + \frac{5x^2}{2} + Cex+25x2+C