0 =( x 1 2 9 July 8, 2019 16 32 64 128 1 x 2 0 9 5 4 X 0 3 1 2x )= 2 9 4 x 1 2 9 0 X 2 9x 1 0 2 x 0 5 )+ 1 9 Y =- 9 for x 0 1 2 X 2 9x 1 0 discriminant 0 9 3 8 x 2 1 3 5 9 x 1 2 7 0 X 1 4 8 x 1 2 9 0 1 x 4 8x 2 9 0 2 1 0 9 x )= 1 26 3x 1 )( x 2 9 )= 0 X 3 2 1 9 0 X 3 9 x 0 1 2 7