The perimeter of the shape below is 11x2+7x + 1 . Find the length of the missing side. (1 point) Responses 4x2+5 4 x squared plus 5 −4x2−2x2+12 negative 4 x squared minus 2 x squared plus 12 4x2−8 4 x squared minus 8 −4x2−2x−7

To find the length of the missing side, we need to simplify the given equation for the perimeter of the shape:

11x^2 + 7x + 1

The perimeter of a shape is the sum of the lengths of all its sides. Since this shape has three sides, we can set up an equation:

11x^2 + 7x + 1 = 2s + L

Where s is the length of the missing side and L is the sum of the lengths of the other two sides. L is equal to 11x^2 + 7x + 1, so:

11x^2 + 7x + 1 = 11x^2 + 7x + 1 + 2s

Simplifying:

2s = 0
s = 0

So, the length of the missing side is 0.