Question 437538
(4x)^4 - 1^4


difference of squares ___ [(4x)^2 + 1^2][(4x)^2 - 1^2]


difference of squares ___ [(4x)^2 + 1^2][4x + 1][4x - 1]


(16x^2 + 1)(4x + 1)(4x - 1)