4(d-1), if you expand it gets 4d-4.
Answer:
The length, in feet, of the side of the garden that is against the wall is(60 - x - CD) ft.
Step-by-step explanation:
Consider the diagram below.
The wall is labelled as AD, the side perpendicular to the wall is labelled as AB and the side against the wall is labelled as CB.
It is provided that the rectangular garden is enclosed by 60 feet of fencing on three sides.
That is,
AB + CB + CD = 60 ft.
⇒ x + CB + CD = 60 ft.
Then the length, in feet, of the side of the garden that is against the wall is:
x + CB + CD = 60 ft.
⇒ CB = (60 - x - CD) ft.
You could do three tenths
Answer:

Step-by-step explanation:
Given

Required
Standard form
We have:

Remove bracket

Collect like terms


Hence, the standard form is:

Answer:

Step-by-step explanation:
The area of a square can be found by
and the area of a triangle can be found by
.
The area of the square with side length y is
.
The area of the triangle with the base 4 and height y is 
Adding the areas together gives 