ko'paytuvchilarga ajratishning dastlabki shakli quyidagicha bo'ladi:

\[\left( {x + \underline {\,\,\,\,\,} } \right)\left( {x + \underline {\,\,\,\,\,} } \right)\]

va -8 omillari,

\[\left( { - 1} \right)\left( 8 \right)\,\hspace{0.25in}\left( 1 \right)\left( { - 8} \right)\hspace{0.25in}\left( { - 2} \right)\left( 4 \right)\hspace{0.25in}\left( 2 \right)\left( { - 4} \right)\]

2-qadam

Endi eslatib o'tamizki, yuqoridagi ro'yxatdagi omillar juftligi -2 olish uchun qo'shiladi. Shunday qilib, biz to'g'ri ko'paytuvchilarga ajratish bo'lishini ko'rishimiz mumkin,

\[{x^2} - 2x - 8 = \require{bbox} \bbox[2pt,border:1px solid black]{{\left( {x - 4} \right)\left( {x + 2} \right)}}\]