What is this reason that each of these companies outsource?

Many companies have conducted a cost benefit analysis and have found that it is more efficient to outsource certain tasks. Conduct research and prepare a one page paper that addresses the following:
Compare and contrast outsourcing and offshoring.
Identify two companies that outsource certain tasks. What is this reason that each of these companies outsource?
Explain one situation in which you have personally experienced outsourcing. Was it a positive or negative experience? Explain.