1 2 6x 9 July 8, 2019 16 32 64 128 1 6x 2 9x 4 1 x 2 6x 9 1 x 2 6x 9 0 2 1 3 6x 9 3 1 2 6x 18 )= x 9 1 6x 2 2x 9 1 6x 9x 2 4x 1 )(- x 2 6x 9 1 6x 9x 2 factorise 11 18x 1 6x 2 9 Integrate 1 /( x 2 6x 9 1 3x 6x 2 3x 9 9x 2 1 6x )=- x 6 9x 2 6x 1 0 quadratic formula 9x 2 6x 1 factored