Erling Haaland could not mark his home debut for Manchester City with another goal, but it made no difference for Pep Guardiola's side who still swept Bournemouth aside with ease.
Haaland, who scored twice on his Premier League bow at West Ham last weekend, took 18 minutes to take his first touch but used it to set up Ilkay Gundogan for City's opener.
City had been dominating the game since the start, and it did not take long for more goals to follow.
The impressive Kevin de Bruyne made it 2-0 with a dazzling solo strike, running to the corner of the area before bending the ball into the bottom corner with the outside of his boot.