SOLUTION: Geometry. A triangle has sides 3x +7, 4x-9, and 5x +6. Find the polynomial that represents its perimeter.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Geometry. A triangle has sides 3x +7, 4x-9, and 5x +6. Find the polynomial that represents its perimeter.      Log On


   

Question 75913: Geometry. A triangle has sides 3x +7, 4x-9, and 5x +6. Find the polynomial that represents its perimeter.
Found 2 solutions by checkley75, Cintchr:
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
3x+7
4x-9
5x+6
-----------------------
12x+4 or 4(3x+1)

Answer by Cintchr(481) About Me  (Show Source):
You can put this solution on YOUR website!
Side 1 = 3x+7
Side 2 = 4x-9
Side 3 = 5x+6
P = S1 + S2 + S3
+P+=+3x%2B7+%2B+4x-9+%2B+5x%2B6+
Add the 'x' values
+P+=+12x+%2B7+-9+%2B6+
Add constant terms
+P+=+12x+%2B+4+