Respuesta :

Answer:

A+B = 7-4w+5v +10wv + 7w +3wv - 12

=3w +5v +13wv-5

A-B= 7 - 4w +5v +10wv - (7w +3wv - 12)

=7 - 4w +5v +10wv - 7w - 3wv + 12

=19 - 11w +5v +7wv

B-A =7w +3wv - 12-(7 - 4w +5v +10wv)

=7w +3wv - 12 - 7 + 4w - 5v - 10wv

=11w - 7wv - 19 - 5v