X 4 3x 3 18x 2 July 8, 2019 16 32 64 128 X 4 4x 3 3x 2 18x H x )=- 3x 4 8x 3 18x 2 18x 4 3x 3 2x 3 x 2 10 6 Is x 4 a factor of x 3 3x 2 18x 40