Answer:
A = [tex]x^{2} +12x+27[/tex]
Step-by-step explanation:
The area of a parallelogram is given by A=b*h where b is the base of the entire shape and h as the perpendicular distance between the bases.
In this case, b=x+9 and h=x+3
A = b*h = (x+9)*(x+3) = [tex]x^{2} +3x+9x+27[/tex] = [tex]x^{2} +12x+27[/tex]
