Ko'paytmalarni ko'paytirmasdan to'g'ridan-to'g'ri hosil qiladigan ko'paytmalarni algebraik tengliklar deb atashadi.Ko'paytmalarni ko'paytmalarni tezroq hosil qilishda qo'llash mumkin.Bu yerda ro'yxat bor. (x + y) kvadratining kvadratini (x + y) 2 = x2 + 2xy + y2 (x - y) kvadratining kvadratini (x - y) 2 = x2 - 2xy + y2 (x + y) kvadratining yig'indisi (x + y) x - y) = x2 - y2 (x + y) kubini (x + y) 3 = x3 + 3x2y + 3xy2+ y3 (x - y) kubini (x - y) = x3 - 3x2y + 3xy2-y
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