Berapa hasil perpangkatan dari(p+6)^3.Tolong d jwb dgn cara yg benar

(P +6)^3 = ( P +3) (p +3) (p +3)
= ( p^2 +6p + 9 ) ( p + 3 )
= p^3 + 3p^2 + 6p^2 + 18P + 9P +27
= p^3 + 9p^2 + 27p + 27