What are the factors of 36x8 – 49?
(9x4 – 1)(4x2 + 49)
(36x4 – 7)(x2 + 7)
(6x4 – 7)(6x4 + 7)
(6x8 – 7)(6x + 7)
(9x4 – 1)(4x2 + 49)
(36x4 – 7)(x2 + 7)
(6x4 – 7)(6x4 + 7)
(6x8 – 7)(6x + 7)