Question

Factoris:
x^4-y^4+x^2-y^2

Answer 1

x4-y4+x²-y²

x4+x²-y4-y²

x²(x²+1)-y²(y²+1)

(x²-y²)(x²+1)(y²+1)

Answer 2

Answer:x⁴-y⁴+x²-y²

x⁴+x²-y⁴-y²

taking x² and y² common

x²(x²+1)-y²(y²+1)

(x²-y²)(x²+1)(y²+1)

(x+y)(x-y)(x²+1)(y²+1)

i hope this helps you