Question 750949
subtract and simplify

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



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


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



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




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



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


:)