This <em>expression</em>, is a d. binomial
First term: 12xyz
Second term: -45
hope this helps
The middle row is long on one side and short in the other side which is the shape of a rectangle.
The net is a rectangular prism
Subtract the 2 equations
7x+2y=-19
- -x+2y = 21
--------------------------
8x +0y=-2
x= -1/4
