Final answer:
To find the perimeter of the frame, use the formula P = 2(length + width) and substitute the given dimensions. Simplify the expression to find the perimeter.
Step-by-step explanation:
To find the perimeter of the frame, we need to add up the four sides of the frame. The length of the rectangle is 4x + 8 and the width is 2x + 3.
The formula for calculating the perimeter of a rectangle is P = 2(length + width). So, we can substitute the given dimensions into the formula and simplify to find the perimeter of the frame.
P = 2((4x + 8) + (2x + 3))
P = 2(6x + 11)
P = 12x + 22