A decorative floor pattern has one red square tile surrounded by blue tiles.

Write the expression.

Phrase: Sum of red square tiles and product of number of red tiles and blue tiles.

Expressions: .

Find the how many total tiles (red and blue).

Substitute the number of red tiles is in the expression and simplify.

First operation is multiplication.

               (Multiply: )

Next operation is addition.

                       (Addition: )

Thus, floor decorative for red tiles surrounding blue tiles is .

Table:

Make a table number of blue tiles for or red tiles.

Number of red tiles	Expression	Blue tiles
	\ \
	\ \	\ \
	\ \	\ \
	\ \	\ \

Observe the table:

Number of blue tiles required for decorative floor for or red tiles surrounded is obtained in table.

The floor decorative for red tiles surrounding blue tiles.

Table:

Number of red tiles	Expression	Blue tiles
	\ \
	\ \	\ \
	\ \	\ \
	\ \	\ \