Respuesta :
The area of shaded region is the area of the large rectangle minus the area of the smaller one. The solution is in the attachment.
P.S. I hope I didn't make any silly mistake.

Answer:
[tex]\Huge \boxed{5x^2 +7x-26}[/tex]
Step-by-step explanation:
[tex]\sf Area \ of \ shaded \ region = Area \ of \ whole \ shape - Area \ of \ unshaded \ region[/tex]
[tex]A=(2x+2)(3x-4)-(x-6)(x-3)[/tex]
[tex]\sf Expand \ brackets.[/tex]
[tex]A=6x^2-8x+6x-8-x^2 +9x-18[/tex]
[tex]\sf Combine \ like \ terms.[/tex]
[tex]A=5x^2 +7x-26[/tex]
