Respuesta :

mumsy

Answer:

Step-by-step explanation:

we have height, h=x+4

w=x^2+3x+2

Area, A=h*w

A=(x+4)(x^2+3x+2)=x^3+3x^2+2x+4x^2+12x+8=

=x^3+7x^2+14x+8