Polynomial Addition Simplify each sum 1 3n 8n2n n A 5n4 8n C 7n 8n 3 3x 8 2x 8 A 2x C 4x B 7n D 7n 5n B 5x D 2x 6 5 4u8u y 3u v 2u A 5u y u4 B 8u y u C 5u y 2u4 D 5u v 7 8y 3x 2x 3y A x 4y C x 3y B x 11y D x 9y 2 4 6 8 2 2n6n 5n 3n A 6n 5n4 C 3n 2n 4 4p 8 7 3p A 4p 3p 1 B 2p 4p 1 C 2p 4p 4 D 2p 3p 1 6 4m n m 7m2m n A 7m n 8m B 16m n 8m C 6m n 8m D 8m n 8m 8 56 8 5 5b4 A 3 C 3 B 3n 3n D 5n 2n B 1 D 5