Question

What is the perimeter of the triangle expressed as a polynomial?

2x-3                 

 x-12

 7x+1

a. -10x + 14
b. 9x- 14
c. 10x +14
d. 10x - 14

Answer 1

If the triangle's sides are given by

2x-3

x-12

7x+1

Then all you have to do is to add them up, simplify your result and compare your result to each of:

a. -10x + 14
b. 9x- 14
c. 10x +14
d. 10x - 14

Adding together the following, we get:

2x-3
x-12
7x+1
---------
10x -14