4x2 12x 9 factorise July 8, 2019 16 32 64 128 4x 2 12x 9 0 factor 4x 2 12x 9 factor 25 4x 2 12x 9 factorise 4x 2 12x 9 0 factorise Factoriser 4x2 12x 9 Factorise 4x2 9 12x a2 b2 2ab Factorise class 9