Question

necesito hallar este producto notable porfi
(x-y)^3 = 4; xy= 11

Answer 1

(x-y)^3= (x^2 - 2xy - y^2 ) (x-y)
(4) ^3 = (x^2 - y^3 - 2(11) ) (4)
38= x^2 -y^2