Question

? simplyfiy. pls. help

Answer 1

1 /4x sq. - 1/4xy + 1/16y sq.

Answer 2

{(1/2x)- (1/4y)}^2

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

[Hint:(a-b)^2=a^2+b^2-2ab]