Let's differentiate: (xex)' We differentiate U1 = x and V2 = ex using: (U1·V2)' = (U1)'·V2 + U1·(V2)' Let's perform the differentiation U1: (x)' 1 Let's perform the differentiation V2: (ex)' ex You can evaluate the resulted derivative (U1·V2)': 1·ex + xex ex + xex exx + ex This expression can be factorized into: ex·(x + 1) ▷Answer: ex·(x + 1)