(х+2):x^2+4x+4/x-2 при х=6
(x+2)/x^2+4x+4/(x-2)=(x+2+4x*x^2)/x^2+4/(x-2)=
(x+2+4x^3)/x^2+4/(x-2)=(4x^3+x+2)/x^2+4/(x-2)=
4x+(x+2)/x^2+4/(x-2)=4x+(5x^2-4)/(x^3-2x^2)
4*6+(5*6^2-4)/(6^3-2*6^2)=24+(5*36-4)/(216-2*36)=
24+(180-4)/(216-72)=24+176/144=
(24*144+176)/144=(3456+176)/144=3632/144=
(227*16)/(9*16)=227/9=25 2/9