1 2x 2 9 0 July 8, 2019 16 32 64 128 1 3x 2 2x 9 0 2x 2 12x 9 0 X 0 3 1 2x )= 2 9 2x 1 4 10 2x 1 2 9 0 9 3 2x )+ 2 5x 1 )= 0 X 2 2x 1 )- 9 0 2x 2 12x 9 0 complete the square 1 x 1 2 x 2 2x 9 1+2x 9