[tex]\\ \sf\longmapsto y=\dfrac{(x+2)}{(x+2)(x-17)}[/tex]
[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x(x-17)+2(x-17)}[/tex]
[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x^2-17x+2x-34}[/tex]
[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x^2-15x-34}[/tex]
[tex]\\ \sf\longmapsto 6=\dfrac{x+2}{x^2-15x-34}[/tex]
[tex]\\ \sf\longmapsto 6(x^2-15x-34)-x-2=0[/tex]
[tex]\\ \sf\longmapsto 6x^2-90x-204-x-2=0[/tex]
[tex]\\ \sf\longmapsto 6x^2-91x-206=0[/tex]
Done
