Algebraik ifoda
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Algebraik ifoda - algebraik amallar (qo'shish, ayirish, ko'paytirish, bo'lish, butun musbat darajaga ko'tarish va butun ko'rsatkichli ildiz chiqarish) ishoralari bilan biriktirilib, harf va sonlardan tuzilgan ifoda. Algebraik ifodada sonlar va harflarning ildiz ishoralari (radikallar) qatnashmasa, bunday ifoda ratsional algebraik ifoda agar radikallar qatnashsa, irratsional algebraik ifoda deyiladi. Agar ratsional algebraik ifodada harfli ifodaga bo'lish amali qatnashmasa, bunday algebraik ifoda butun, agar qatnashsa, kasrli algebraik ifoda deyiladi.