Someone sent a message to several good friends on his mobile phone during the New Year, and the person who got the message also sent a message according to the number of people sent by this person plu

Someone sent a message to several good friends on his mobile phone during the New Year, and the person who got the message also sent a message according to the number of people sent by this person plus 1. After two rounds. Suppose that in the first round, someone sends messages to X people, and X people who get messages each send (x+ 1) messages.

Judging from the meaning of the question,

x+x(x+ 1)=35，

Finishing x 2 +2x-35=0,

The solution is x 1 =5, and x 2 =-7 (truncation).

A: In the first round, 5 people received text messages, and in the second round, 30 people received text messages.