Inter beats Genoa 5-0 for 7th straight Serie A victory
Meanwhile, Inter and Napoli both scored five goals in their wins against Genoa and Napoli but they remain six points behind Juventus, which faces Milan next Sunday in a tricky week for the defending Italian champion.
"We struggled to score the second goal and we drifted out of the game a bit," Juventus coach Massimiliano Allegri said. "We need to improve in defending in our half of the pitch: We think we can always score two or three goals but it's not always like that."
Joao Pedro leveled in the 36th, bringing down a cross from the right and swiveling to drill into the bottom near corner.
It was an eventful first half as each side also had penalty appeals waived away, while Cristiano Ronaldo sent an effort crashing off the left post.
Juan Cuadrado sealed the match three minutes from time with his first goal of the season. Dybala picked out Ronaldo, who ran nearly half the length of the pitch before rolling across for Cuadrado to blast it into the back of the net.
Roberto Gagliardini scored twice and Matteo Politano, Joao Mario, and Radja Nainggolan added the other goals as Inter beat Genoa 5-0 for a seventh successive Serie A win.
The result boosted Inter's confidence for Tuesday's Champions League game at home with Barcelona. The Catalan club beat Inter 2-0 two weeks ago.
Genoa, the only team to have taken points off Juventus this season, remained 11th but only four points off fourth spot.
Inter took control in the first half with two goals in as many minutes from Gagliardini and Politano — both of them following mistakes by the Genoa defense.
Genoa offered little, even when Piatek was sent on for former Inter forward Goran Pandev, five minutes into the second half.
Joao Mario capped a great individual performance with a second-half goal and also set up the other two, including for Nainggolan, who scored minutes after coming off the bench for his first appearance since injuring his ankle in the derby against AC Milan last month.
Alessandro Florenzi scored late on to rescue a 1-1 draw for Roma at Fiorentina.
Roma seemed to be heading for defeat when, five minutes from fulltime, Fiorentina goalkeeper Alban Lafont parried Aleksandar Kolarov's cross straight at Florenzi, who leveled with a scuffed volley.
Both teams are two points behind fourth-placed Milan.
Roma visits CSKA Moscow in the Champions League on Wednesday.