Which of the following is an example of convergence theory

Some examples of convergence theory include Russia and Vietnam, formerly purely communist countries that have eased away from strict communist doctrines as the economies in other countries, such as the United States, have burgeoned.

Explanation:

2

Step-by-step explanation:

Given data

We have the function p(x)=(x-1)(x+1)

Let us find

p(2), p(1), and p(0)

p(2)= (2-1)(2+1)

p(2)= (1)(3)

p(2)= 3

P(1)= (1-1)(1+1)

p(1)= 0*1

P(1)= 0

p(0)= (0-1)(0+1)

p(0)= 1

Hence , p(2)+p(1)-p(0)​

=3+0-1

=3-1

=2