3 2 x )= 18x 1 July 8, 2019 16 32 64 128 F x )= 2x 3 2x 2 18x 18 Y x 3 2 18x 15 Y 18x 2 x 3 19 Y x 3 18x 2 17 X 3 11x 2 18x 0 $3 x 2 18x 12 0 Solve $3 x 2 18x 12 0 by completing the square 3x 3 2x 2 18x 12 2x 3 2x 2 18x 18 X 2 18x 14 =- 3 X 3 9x 2 18x 12 X 3 18x 2 108x 216 27 X 3 18x 2 108x 216 X 3 18x 2 108x 16 18x 5x 2 =-( x 3 )- 1
