Respuesta :

Answer:

2x^2t + 7xy

Step-by-step explanation:

I'm guessing you want this simplified, since you have not specified what to do,

5xy + 2xy = 7xy

-x^2t + 3x^2t = 2x^2t

= 2x^2t + 7xy

Answer:

x(7y + 2xt)

Step-by-step explanation:

5xy - x²t + 2xy + 3²t =

= 7xy + 2x²t

= x(7y + 2xt)