2 3k 9 July 8, 2019 16 32 64 128 2 3k 9 5 3k 2 9k 2 5 3k )+ 9k 3k 2 9k − 20 2k 3k 2 9k factored 3k 2 9k 6 2k 2 3k 9 K 2 3k 9 K 2 3k 9 0 2k 2 3k 9 0 Factorise 3k 2 9k 3k 2 37k 90 7 3k 2 9 16 3k 2 4k 9 3k 2 )( 6k 9
