Suppose a2 + 4a + 3 represents the area of a rectangle. What is the perimeter of that rectangle? A) 2a + 4 B) 4a + 8 C) 6a + 12 D) 8a + 16

A² + 4a + 3

(a+3) (a+1) This is the length and the width of the rectangle.

Perimeter = length + length + width + width

P = (a+3) + (a+3) + (a+1) + (a+1)

P = a + a + a + a + 3 + 3 + 1 + 1

P = 4a + 6 + 2

P = 4a + 8

B) 4a + 8