Question

(x + y)^2 - 4xy÷(x-y)^2
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Answer 1

Answer:

1

Step-by-step explanation:

the question can be written as

(x^2+y^2+2xy-4xy)/( x^2+y^2-2xy)     [ a+b and a-b the whole square formula]

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

=1

Answer 2

Answer:

x^2+y^2+2xy-4xy÷x^2+y^2-2xy

x^2+y^2-2xy÷x^2+y^2-2xy

answer is 1