Perimeter (p) equals 2 times the length (L) plus 2 times the width (w).
This equation is used to find the perimeter of a rectangle.
Answer:

Step-by-step explanation:
We can use the pascal triangle to find the coefficients of the expasion of the cube. It holds that

The error is in line 3.
Specifically, the error is when the student went from
to simply
without a square root over top. The
should simplify to 3.
Here's what the student should have done in terms of a step-by-step picture.

The simplified final answer is 
<span>4, 9, 2, 2, 5, 2, 4?
2, 2, 2, **4**, 4, 5, 9
Answer = B</span>
Definition, postulate, corollary and theorem