Question 38613
The critical step here is FACTORING, and I mean FACTOR COMPLETELY!!


{{{(x^2 - 9x + 14)/(5x^2 - 20)}}}

{{{((x-7)*(x-2))/(5(x^2-4))}}}
{{{((x-7)*(x-2))/(5(x-2)*(x+2))}}}


Divide out the x-2 factor in the numerator and denominator, and this should be what is left:
{{{(x-7)/(5(x+2))}}}


R^2 at SCC