Respuesta :

Answer:

y²+xy+x+3y+2.

Step-by-step explanation:

Given that,

(x + y + 2)(y + 1)

We will multiply the first bracket variable with the second bracket variable.

i.e, the x with y+1, and the y with y+1, and 2 with y+1.

Therefore,

x(y+1)+y(y+1)+2(y+1)

xy+x+y²+y+2y+2

Collecting like terms and rearranging

y²+xy+x+y+2y+2

y²+xy+x+3y+2 Answer