Question

Resolve the following into factors: 1/4 – 1/4x² – 2xy – 4y²​

Answer 1

Answer:

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

=1/4-{1/2x)^2+2.1/2x.2y+(2y)^2}

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