Gareth Bale added to Asier Illaramendi's first-half opener with a stunning strike on 71 minutes, and then substitute Isco hit a third with 10 minutes remaining.
Real coach Carlo Ancelotti said: "I am satisfied because we have shown solidarity, we didn't give anything away at the back. The overall play could have been better, but at this stage of the season we have to be clinical, and that's how we played. I am very happy."
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