Multiply (x + 1)3
(x + 1)2 = (x + 1)(x + 1)2
= (x + 1)(x2 + 2x + 1)
=x+
3 x2+2
DONE

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?