Question

Evaluate using identities (1/4x^2+1/2y^2)^2

Answer 1

Answer:

=(1/4x^2+1/2y^2)^2

=(x^2+2y^2)^2/(4)^2

=(x^4+4y^4+2*x^2*2y^2)/16

=1/16(x^4+4y^4+4x^2y^2)