Question

pls :c



si no la saben no respondan pls

Answer 1

Explicación paso a paso:

(x³-y³)/xy=3(x-y)

(x-y)(x²+xy+y²)=3xy(x-y)

(x²+xy+y²)=3xy.

E=3xy/(x²+2xy+y²)

E=3xy/(3xy+xy)

E=3/4