5 x 3 )-( x 2 )= 19 July 8, 2019 16 32 64 128 6 x 2 )- 5 x 3 )= x 19 6 x 2 )- 5 x 3 )= 2x 19 5 x 1 )- 19 3 x 2 2 x 5 )+ 3 x 7 )= 19 2 x 5 y 1 3 x 2 y 19 20 3 5 * x 2 19 5 * x 4 3 x 2 mũ x 1 5 19 2 x 5 )- 4x x 3 19 Factorise 2x 3 5 x 2 19 x 42 7 x 3 )- 5 x 2 )+ 11 x 1 )= 19
