(x^2-y^2) / (x+y)^2 cократить дробь.
(x^2-y^2)/(x+y)^2=(x+y)(x-y)/(x+y)^2=x-y/x+y
(x^2-y^2) / (x+y)^2
(x-y)(x+y) / (x+y)^2
(x-y)/(x+y)
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(x^2-y^2)/(x+y)^2=(x+y)(x-y)/(x+y)^2=x-y/x+y
Verified answer
(x^2-y^2) / (x+y)^2
(x-y)(x+y) / (x+y)^2
(x-y)/(x+y)