2 5x 12 25 July 8, 2019 16 32 64 128 25x 2 5x 12 0 25x 2 5x 12 4x 2 5x 12 25 3x 2 5x 25 12 12 5x 1 2 25 Factorise 4x 2 12 5x 9 25 Factorize 4x 2 12 5x 9 25 4 25x 2 12 5x a 2 5x-12 2 x 2 5 2 5x-12=x+12