Question

x^{2}+2xy+y^2-4z^{2}​

Answer 1

Answer:,

x^{2}+2xy+y^2-4z^{2} = (x+y+2z)(x+y−2z)

Step-by-step explanation:

x^2+2xy+y^2−4z^2

=(x+y)^2−(2z)^2

=[(x+y)+2z][(x+y)−2z]

=(x+y+2z)(x+y−2z)