The expression 5x2 + 2x + 3 represents the area of a square. The area of
rectangle is represented by 2x2 + 3x + 1. Which expression represents th
combined area of the square and rectangle?
a. 7x4 + 5x2 + 4
c.7x2 + 5x + 4
b. 3x4 - x2 + 2
d. 3x2 - x + 2