N n 4 )( 3n 5 July 8, 2019 16 32 64 128 Expand and simplify n n 4 )( 3n 5 N 2 3n 4 5 n 6 21 3n 4 )( 5n 2 )+ 5 n 7 N 2 3n 4 5n 6 N 2 3n 4 5n 3n 5 /- 2 n 4 3 3n 4 =- 5 n 2 )- 10 47 4 n 5 )+ 5 (- 3n 2 3n n 3 5 n 4 2 n 4 )- 5 3n 7 )=- 113 3n 4 5 n 2 )- 2n 2 4 3n 4 n 5 Cho a 3n 5 n 4 3n n 4 4n 5 N 5 3n 4 n 19