Answer:
x^2+12x+27
Step-by-step explanation:
The area of the blue is
x*x = x^2
The area of the pink is
9x
The area of the green is
3x
The area of the orange is
3*9 = 27
Add them together
x^2 +9x+3x+27
Combine like terms
x^2 +12x +27
Area of rectangle =Length xWidth
=(x+9)(x+3)
=x^2 +3x +9x +27(by expanding)
=x^2 +12x +27
Hope this helps...
