4x 2 6x 9 3x 2 July 8, 2019 16 32 64 128 4x 2 6x 9 3x 2 discriminant 4x 2 5x 9 x 2 6x 7 3x 2 4x 6x 2 9 )( 3x 2 2x 1 6x 3 4x 2 x 9 )-( 3x 2 7x 3 4x 3 2x 2 6x 9 x 4 3x 2 6x 4 Write 4x 2 9 6x 9 x 2x x 2 3x X 2 3x 9 )+( 4x 2 6x 1 2x 4x 2 6x 2 9 1 x 3x (- 3x 2 7x 9 )+( 4x 2 6x 7 6xy - 4y + 6 - 9x 4x-6 2=3 9
