Answer:
=4x^2 +28x+48
Step-by-step explanation:
Width of the garden is 8
There is walkway on each side of width so add x on each side
With the walkway is x+8+x = 2x+8
Length of the garden is 6
There is walkway on each side of length so add x on each side
With the walkway is x+6+x = 2x+6
The area of the garden is
A = lw
A = 8*6 = 48
The area of the walkway and garden is
A = lw
= (2x+8) (2x+6)
FOIL (first outer inner last)
= 4x^2 + 12x + 16x +48
=4x^2 +28x+48