3 x 4 5x 19 July 8, 2019 16 32 64 128 3x 4 5x 194 4 2 3 x )+ 5x 7 12x 19 3 5 x 2 19 5x 4 3 5 x 2 19 5x 4 factorise 3 x-5=x+3
