What is the estimate in 1374x6 i believe it's 8244 but i'm not quite sure btw explain this in elmeatary level because that's what i'm in

Place the following steps in order to complete the square and solve the quadratic equation,

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

If value of cos330° is √3/2 then find tan165°.