SOLUTION: Find a simplified expression for [fog](x): f(x)={{{3x/(x^2 +3x +2)}}}, g(x) = {{{5x/(x+1)}}}

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find a simplified expression for [fog](x): f(x)={{{3x/(x^2 +3x +2)}}}, g(x) = {{{5x/(x+1)}}}      Log On


   

Question 864865: Find a simplified expression for [fog](x):
f(x)=3x%2F%28x%5E2+%2B3x+%2B2%29, g(x) = 5x%2F%28x%2B1%29
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute %285x%29%2F%28x%2B1%29 for x in f(x), and then simplify. That's all. Just some algebra steps.

3%285x%2F%28x%2B1%29%29%2F%28%285x%2F%28x%2B1%29%29%5E2+%2B3%285x%2F%28x%2B1%29%29+%2B2%29