Factor the expression y4−625y^4 - 625y4−625 completely.
(y2+25)(y+5)(y−5)(y^2 + 25)(y + 5)(y - 5)(y2+25)(y+5)(y−5)
(y2−25)(y2+25)(y^2 - 25)(y^2 + 25)(y2−25)(y2+25)
(y+5)2(y−5)2(y + 5)^2(y - 5)^2(y+5)2(y−5)2
(y2+5)(y2−5)(y+5)(y−5)(y^2 + 5)(y^2 - 5)(y + 5)(y - 5)(y2+5)(y2−5)(y+5)(y−5)