#(p+5)/(p^2+p)=1/(p^2+p)-(p-6)/(p+1)#
#:.(p+5)/(p(p+1))=1/(p(p+1))-(p-6)/(p+1)#
#:.(p+5=1-p(p-6))/(p(p+1))#
#:.(p+5)/(p(p+1))=(1-p(p-6))/(p(p+1))#
multiply L.H.S. and R.H.S. by #color(blue)( (p(p+1))/1#
#:. cancelcolor(blue)(p(p+1))^color(red)1/1 xx (p+5)/cancel(p(p+1))^color(red)1=(1-p(p-6))/cancel(p(p+1))^color(red)1 xx cancelcolor(blue)(p(p+1))^color(red)1/1 #
#:.p+5=1-p(p-6)#
#:.p+5=1-p^2+6p#
#:.p^2-5p+4=0#
#:.(p-1)(p-4)=0#
#:.color(blue)(p=1 or p=4#
substitute #color(blue)(p=1#
#:.(color(blue)1+5)/(color(blue)1^2+color(blue)1)=1/(color(blue)1^2+color(blue)1)-(color(blue)1-6)/(color(blue)1+1)#
#:.6/2=1/2-((-5)/2)#
#:.6/2=1/2+5/2#
#:.6/2=6/2#
substitute #color(blue)(p=4#
#:.(color(blue)4+5)/(color(blue)4^2+color(blue)4)=1/(color(blue)4^2+color(blue)4)-(color(blue)4-6)/(color(blue)4+1)#
#:.9/20=1/20-((-2)/5)#
#:.9/20=1/20+2/5# #(2/5 xx 4/4=8/20)#
#:.9/20=1/20+8/20#
#:.9/20=9/20#