Question

al simplificar la expresion (x-y) (x^2+xy+y^2)-(x+y)(x^2-xy+y^2) se obtiene?

Answer 1

$(x-y) (x^{2} +xy+y^2)-(x+y)( x^{2} -xy+y^2)$

$x^{3} - y^{3} - ( x^{3} + y^{3} )$

$x^{3} - y^{3} - x^{3} - y^{3}$

$-2 y^{3}$