It is asking for me to factor this equation (x-2)(x-2)+6(x-2)+9
this is the final answer (x-1)(x-1) how did this answer come to be?

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?