Question 294846
<pre><font size = 4 color = "indigo"><b>
{{{drawing(800,150,-1,38,-2,2,locate(0,1,

( (2x-2)/(x^2-1)+1/(2x+2) )

/

(  1/(x+1)-1  ) ), locate(7,.3,"="),locate(8,.8, ( (2(x-1))/((x-1)(x+1))+1/(2(x+1)) )

/

(  1/((x+1))-1  ) ),

locate(17,.4,"="), locate(18,1, ( (2(cross(x-1)))/((cross(x-1))(x+1))+1/(2(x+1)) )

/

(  1/((x+1))-((x+1))/((x+1))  ) ),

locate(28,.3,"="), locate(29,.8, ( 2/((x+1))+1/(2(x+1)) )

/

(  (1-(x+1))/((x+1))  ) ), locate(36,.3,"=")


)}}}

{{{drawing(800,150,-1,38,-2,2,locate(0,1,

( 2*2/(2(x+1))+1/(2(x+1)) )

/

(  (1-x-1)/((x+1))  ) ),

locate(8,.3,"=")

locate(9,1,

( 4/(2(x+1))+1/(2(x+1)) )

/

(  (-x)/((x+1))  ) ),

locate(18,.3,"=")

locate(19,1,

( 5/(2(x+1)) )

/

(  (-x)/((x+1))  ) ), locate(24,.3,"=")

locate(25,.5,

 5/(2(x+1))  ), locate(29,.3,"÷"), locate(30,.5,

  (-x)/((x+1))   ), locate(33,.3,"=") 


)}}}

{{{ (5/(2(x+1)))*(((x+1))/(-x))=(5/(2(cross(x+1))))*((cross((x+1)))/(-x))=5/(-2x)=-5/(2x)}}}

Edwin</pre>