Consider the polynomial p(x) = 16x^4 81y^4. Which of the following are equivalent expressions? Select all that apply.
(4x²-9y2)(4x² - 9y²)
(4x²-9y2)(4x² + 9y²)
(4x²+9y2)(2x-3y) (2x-3y)
(4x²+9y²) (2x + 3y) (2x + 3y)
(4x² +9y²) (2x + 3y)(2x - 3y)
(4x²-9y²)(4x² - 9y²)
(4x²+9y²) (2x + 3y) (2x + 3y)