Question

Simplify:
(y-1)(y+1)(y² +1)(y⁴+1)​

Answer 1

Step-by-step explanation:

(y-1)(y+1)(y² +1)(y⁴+1)

(y²-1)(y^6+y²+y⁴+1)

y^8+y⁴+y^6+y²-y^6-y²-y⁴-1

y^8-1