Ushbu ikki ko'phadni ko'paytirgan va o'xshash hadlarni birlashtirgan monomiylarning sonini topish uchun kombinatoriy prinsiplardan foydalanishimiz mumkin. Birinchi ko'phadni quyidagicha qayta yozish mumkin: 1 + t ^ 3 + t ^ 6 +... + t ^ 30 jami 11 ta had bilan (eksponentlar 3 ning ko'paytmasi bo'lib, 0 dan 30 gacha). Ikkinchi ko'phadni quyidagicha qayta yozish mumkin: 1 + t ^ 5 + t ^ 10 +... + t ^ 30 jami 7 ta had bilan (eksponentlar 5 ning ko'paytmasi bo'lib, 0 dan 30 gacha). Ushbu ikkita ko'phadni ko'paytirganimizda, birinchi ko'phaddagi har bir had ikkinchi ko'phaddagi har bir had bilan ko'paytadi, natijada 11 * 7 = 77 ta monomiy bo'ladi
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