Answer:
(4 + 2x)(5 + 2x)
Step-by-step explanation:
The garden has:
length = 4 ft
width = 5 ft
Now we want to add the border.
Here's what we will do:
For the length:
we will add x ft above the garden and x ft below the garden. This means that we will add a total of 2x.
The new length will then be: 4 + 2x
For the width:
we will add x ft on the right of the garden and x ft on the left of the garden. This means that we will add a total of 2x
The new width will then be: 5 + 2x
Now, area is calculated by multiplying the length by the width. This means that:
Area = (5 + 2x)(4 + 2x)
Hope this helps :)