Question

6. The rectangles length can be represented by 3n2 + 2n -1 and its width can be represented by n2 + 3. What is the perimeter of the rectangle?show your work plsbest answer=brainiest

Answer 1

The perimeter P of a retangle is given as

P = 2(L + B) where

L is the length and B is the width

Hence the perimeter of the given rectangle

= 2(3n2 + 2n -1 + n2 + 3)

= 2(3n2 + n2 + 2n -1 + 3)

= 2(4n2 + 2n -2)

= 8n2 + 4n - 4