Respuestas

2014-01-31T18:52:33+01:00
(4xy+5x^2y-6x^3)+(3 y^3-6xy^2+7 x y+x^3-2x^2y) = 


4xy + 5x²y - 6x³ + 3y³ -6xy² +7xy + x³ -2x²y = 

 

-6x³ + x³ +5x²y -2x²y -6xy² +4xy + 7xy +3y³ = 


-5x³ + 3x²y -6xy² +11xy + 3y³