Its parallel so they are equal
7x-40=5x+10
2x=50
x=25
10 4 , so basically you cross multiply : 10x=20 .... 20 divided by 10 is 2 . x=2
___ = ___
5 x
The polynomial that is a perfect square is 16x^2 + 24x +9. Option C shows the polynomial which is a perfect square.
<h3>
What is square?</h3>
The square can be defined as a two-dimensional figure that has 4 equal sides.
Given are the equations of the areas of the polynomial.
Option C: 
We can write the above equation as,


Here a = 4x and b = 3, so

The simplification of the area of a polynomial is (4x+3)^2 which represents the area of a square.
Hence the polynomial that is a perfect square is 16x^2 + 24x +9. Option C shows the polynomial which is a perfect square.
To know more about the area of the square, follow the link given below.
brainly.com/question/1658516.
Answer: Hmm, i dont know if this is right, but heres one anwser, 11.2, and the second one, 16.
Please tell me which is right.