Question

Factorize: x4 + y4 - 3x²y2​

Answer 1

Answer:

correct answer=D

(x

2

−y

2

−xy)(x

2

−y

2

+xy)

The value of x

4

+y

4

−3x

2

y

2

is

x

4

+y

4

−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)