Asosiy tarkibga oʻtish
x_5 ga nisbatan hosilani topish
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Baholash
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Baham ko'rish

15x_{5}^{1-1}
ax^{n} hosilasi – nax^{n-1}.
15x_{5}^{0}
1 dan 1 ni ayirish.
15\times 1
Har qanday t sharti uchun (0 bundan mustasno) t^{0}=1.
15
Har qanday t sharti uchun t\times 1=t va 1t=t.