Respuesta:
link en mi comentario Revisas
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Respuesta:
link en mi comentario Revisas
... = 9x^2 -18xy + 9y^2 +12x^2-12y^2+4x^2+8xy^2+4y^2 = ...
... =