To find the area of a rectangle, you use the formula:
\[ \text{Area} = \text{length} \times \text{width} \]
In this case, the length is 55 inches and the width is 43 inches. Therefore, the area can be calculated as:
\[ \text{Area} = 55 \times 43 \]
None of the provided expressions directly match that formula, but the only relevant expression to find the area would involve multiplication rather than addition or subtraction of squared terms.
The correct way to express the multiplication conceptually could reference a simpler calculation:
\[ 55 \times 43 \]
However, since none of the options correctly correspond to calculating the area through multiplication, we can't choose any of the listed options accurately. If forced to choose from them, the focus on distinguishing the area measurement would typically require recognizing multiplication rather than any of the squares or their operations.
So, while none specifically represent the area calculation as intended, the correct calculation method is straightforward multiplication.