SOLUTION: The fence around a quadilateral shaped pasteur is 3a^2 + 15a + 9 long. Three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. What is the length of the fourth

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The fence around a quadilateral shaped pasteur is 3a^2 + 15a + 9 long. Three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. What is the length of the fourth       Log On


   



Question 1112074: The fence around a quadilateral shaped pasteur is 3a^2 + 15a + 9 long.
Three sides of the fence have the following lengths:
5a, 10a-2, a^2-7.
What is the length of the fourth side of the fence.
Please help me work out this problem.

Answer by ikleyn(52915) About Me  (Show Source):
You can put this solution on YOUR website!
.
You are given the total length of the fence, which is THE PERIMETER, and the lengths of the tree sides.

The forth side is the difference.