Related Post: 1 2 * X 3 2x 5 2 3 2x 1 2 X 2 5 0 X 2 3 2 2x 5 1 Verify 3x 1 )( X 3 2 =( 3x 1 )( 2x 5 2 2x 3 )( 2x 5 )( X 1 )( X 2 )= 30 2x 1 2 X 3 2 5 X 7 X 7 5 Factorise 1 X 3 2x 2 X 2 3 2x 1 )- 4 2 X )= 4x 5 2x 2 Solve X 2 3 2 2x 5 1 3 2x 1 )- 2 X 5 )- 5 5 2x )= 16