Решение
(x+18y)²−(18x+y)² = ( x + 18y - 18x - y)*(x + 18y + 18x + y) =
= (- 17x + 17y)*(19x + 19y)
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Решение
(x+18y)²−(18x+y)² = ( x + 18y - 18x - y)*(x + 18y + 18x + y) =
= (- 17x + 17y)*(19x + 19y)