His sociability is an important factor for his success as a leader.

Changes in the social system inevitably occur with time.

Social justice means that all people are treated equally.

He is deeply interested in social issues.

He used to be a member of the Chinese gang.

He experienced the harsh reality of the underbelly of society.

He is an excellent doctor.

He is a famous author, and his works are loved by many readers.

Natural numbers start from 0 and continue as 1, 2, 3, 4, 5, 6, 7, 8, 9.

What should I do to find the root number of this equation?