Solve (x + 1)2 – 4(x + 1) + 2 = 0 using substitution. u = x 4(x +1) x +1 (x + 1)2 select the solution(s) of the original equation. x = 1 + sqrt 2 x = 2 + sqrt 2 x = 3 + sqrt 2 x = 1 - sqrt 2 x = 2 - sqrt 2 x = 3 - sqrt 2

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?