Can someone please help me!

Answer:
F. 3x - 2
Step-by-step explanation:
The length of the square is equal in square so.
Here
Area (A)
= 9x² - 12x + 4
= (3x) ² - 2 * 3x * 2 + (2)²
= (3x - 2)²
We have
Area = L²
(3x - 2 )² = L²
Length = (3x - 2)
Hope it will help):)