Question

x^4-y^4+x^2-y^2


factorize​

Answer 1

Answer:

x

4

+x

2

y

2

+y

4

=(x

2

)

2

+(y

2

)

2

+x

2

y

2

=(x

2

+y

2

)

2

−2x

2

y

2

+x

2

y

2

=(x

2

+y

2

)

2

−(xy)

2

=(x

2

+y

2

−xy)(x

2

+y

2

+xy).