Arsenal responded to their exits from both the Champions League and FA Cup with a comfortable victory over Everton at Goodison Park.
Danny Welbeck opened the scoring on seven minutes, put through by Alexis Sanchez to round Joel Robles and slot home for his fourth of the season.
On 42 minutes, teenager Alex Iwobi marked his maiden Premier League start with a first goal for the club.
The results leaves the Gunners eight points behind leaders Leicester City.
It was a first win in four league matches for third-placed Arsenal, who dominated the game.
In contrast, Everton failed to test Arsenal properly and had just two shots on target as their dreadful home form - now four defeats in five in the league.
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