Back to Practicehard • Past Paper

Factorize: x^4 + x^2y^2 + y^4.

A(x^2+xy+y^2)(x^2-xy+y^2)

B(x^2+y^2)^2

C(x^2+xy-y^2)(x^2-xy+y^2)

D(x+y)^4