Which polynomial expression represents the area of the outermost square tile, shown below? a square shaped tile with length x minus three is shown x2 + 6x − 6 x2 − 9x + 6 x2 + 6x − 9 x2 − 6x + 9

The polynomial expression represents the area of the outermost square tile,  is:

Step-by-step explanation:

We are asked to find the area of a square side whose length of side is given to be:

Side length(s)=

The area of a square of side length " s " is given by:

Hence, the area of square tile is calculated by:

Now, we know that:

on expanding the term of the area we get:

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

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