Question 334761
{{{(2x)/(7x^2+8x+1)}}}  , {{{  1/(5x^2-4x-1)}}}
{{{(2x)/(7x^2+7x+x+1)}}}, {{{1/(5x^2-5x+x-1)}}}
{{{(2x)/(7x(x+1)+1(x+1))}}}, {{{(1)/(5x(x-1)+1(x-1))}}}
{{{(2x)/(7x+1)(x+1)}}},{{{1/(5x+1)(x-1)}}}
{{{LCM = (x+1)(x-1)(5x+1)(7x+1)}}}