The perimeter of the shape below is 11x2+7x + 1

. Find the length of the missing side.

(1 point)
Responses

−4x2−2x−7
negative 4 x squared minus 2 x minus 7

4x2−8
4 x squared minus 8

−4x2−2x2+12
negative 4 x squared minus 2 x squared plus 12

4x2+5