Question 1084113

A: 

{{{(x^2/(x^2+2x+1) )/ (3x/(x^2-1))}}}


{{{(x^cross(2)/(x+1)^2 )/ (3cross(x)/(x^2-1))}}}


{{{(x/(x+1)^cross(2 ))/ (3/cross((x+1))(x-1))}}}


{{{(x/(x+1))/ (3/(x-1))}}}


{{{x(x-1)/3(x+1)}}}



B:


{{{ (2x)/(x^2-x-2) - (4x)/(x^2-3x+2) }}}


{{{ (2x)/((x + 1) (x - 2)) - (4x)/((x - 1) (x - 2)) }}}


{{{ (2x(x - 1))/((x - 1)(x + 1) (x - 2)) - (4x(x + 1) )/((x + 1) (x - 1) (x - 2)) }}}


{{{ (2x(x - 1) - 4x(x + 1) )/((x + 1) (x - 1) (x - 2)) }}}


{{{ (2x^2 - 2x - 4x^2 -4x )/((x + 1) (x - 1) (x - 2)) }}}


{{{ (-2x^2 - 6x )/((x + 1) (x - 1) (x - 2)) }}}


{{{( -2x(x +3 ))/((x + 1) (x - 1) (x - 2)) }}}