Agreenhouse that specializes in growing geraniums is divided into sections. the number of geranium pots in each section depends on the number of sprinklers in that section.

there are x(7x − 2) pots of red geraniums and (x + 3)^2 pots of pink geraniums in a section with x sprinklers.

which simplified expression represents the total number of red and pink geranium pots in a section with x sprinklers?
a. 8x^2 + 4x + 9
b. 8x^2 + 6x + 9
c. 8x^2 + 6x + 7
d. 8x^4 + 4x^2 + 9