X 2 4x 4 )( x 2 8x 16 July 8, 2019 16 32 64 128 X 2 )( x 4 2x 3 4x 2 8x 16 X 2 )( x 4 2x 3 4x 2 8x 16 với x 3 (x - 4)(x ^ 2 + 8x + 16) = 9(x + 4) (x ^ 2 - 16)/(8x ^ 3) * (4x)/(x + 4)
