“I always want to show many things in every match, and help my team win, but it is true that I have lots of confidence right now,” said Benzema, who played with a bandaged right hand after fracturing a finger two weeks ago.
A third straight league win kept Santiago Solari’s team in third place and 10 points behind leader Barcelona.
“(Benzema) always has well-rounded matches, but today he happened to also score, and score beautiful goals at that,” Solari said. “This just confirms what he has been doing all season long and for most of his career.”
Madrid finished without both starting centerbacks. Sergio Ramos picked up a knock that led to his substitution at halftime, while Raphael Varane saw a direct red for fouling Pablo Piatti with only the goalkeeper to beat in the 72nd with Madrid 4-1 ahead.
Benzema got Madrid going when he put in the rebound of a save by goalkeeper Diego Lopez, who had parried Luka Modric’s strike after Espanyol’s defense backpedaled as the midfielder dribbled into the area.
Ramos doubled the visitors’ advantage with a header in the 15th. Espanyol’s defense was again to blame as he left Ramos unmarked for Modric to find him with a cross.