SOLUTION: The three sides of a triangle are represented by the expression {{{(2x)/(3)}}},{{{(5)/(x-3)}}} and {{{(7)/(x+2)}}} Find the expression that will represent the perimeter of the

Algebra ->  Equations -> SOLUTION: The three sides of a triangle are represented by the expression {{{(2x)/(3)}}},{{{(5)/(x-3)}}} and {{{(7)/(x+2)}}} Find the expression that will represent the perimeter of the       Log On


   

Question 1178613: The three sides of a triangle are represented by the expression %282x%29%2F%283%29,%285%29%2F%28x-3%29 and %287%29%2F%28x%2B2%29
Find the expression that will represent the perimeter of the triangle.

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

if 2x%2F3,5%2F%28x-3%29 and 7%2F%28x%2B2%29 are the three sides of a triangle, the expression that will represent the perimeter of the triangle is



2x%2F3%2B5%2F%28x-3%29%2B7%2F%28x%2B2%29......common denominator

2x%28x-3%29%28x%2B2%29%2B5%2A3%28x%2B2%29%2B7%2A3%28x-3%29%29%2F%283%28x%2B2%29%28x-3%29%29

%282x%5E3-2x%5E2-12x%2B15x%2B30%2B21x-63%29%2F%283%28x%2B2%29%28x-3%29%29

%282x%5E3-2x%5E2%2B24x-33%29%2F%283%28x%2B2%29%28x-3%29%29

%282x%5E3-2x%5E2%2B24x-33%29%2F%283%28x%2B2%29%28x-3%29%29-> the expression that will represent the perimeter of the triangle