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Subtracting and Simplifying Radicals http://www.khanacademy.org/video/subtracting-and-simplifying-radicals --------------------------------------- يتناول هذا الفيديو شرح لمسألة حول طرح الجذور وتبسيطها ---------------------------------------- شكر خاص لمؤسسة شركاء في التنمية المستدامة -- فلسطين http://psdpal.org