frac{3^{9}-3^8-3^7}{3^4*3^3} eching

$$\frac { 3 ^ { 9 } - 3 ^ { 8 } - 3 ^ { 7 } } { 3 ^ { 4 } \cdot 3 ^ { 3 } }$$

Baholash

$$5$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichlarini ko‘paytirish uchun ularning darajalarini qo‘shing. 4 va 3 ni qo‘shib, 7 ni oling.

$$\frac{3^{9}-3^{8}-3^{7}}{3^{7}}$$

9 daraja ko‘rsatkichini 3 ga hisoblang va 19683 ni qiymatni oling.

$$\frac{19683-3^{8}-3^{7}}{3^{7}}$$

8 daraja ko‘rsatkichini 3 ga hisoblang va 6561 ni qiymatni oling.

$$\frac{19683-6561-3^{7}}{3^{7}}$$

13122 olish uchun 19683 dan 6561 ni ayirish.

$$\frac{13122-3^{7}}{3^{7}}$$

7 daraja ko‘rsatkichini 3 ga hisoblang va 2187 ni qiymatni oling.

$$\frac{13122-2187}{3^{7}}$$

10935 olish uchun 13122 dan 2187 ni ayirish.

$$\frac{10935}{3^{7}}$$

7 daraja ko‘rsatkichini 3 ga hisoblang va 2187 ni qiymatni oling.

$$\frac{10935}{2187}$$

5 ni olish uchun 10935 ni 2187 ga bo‘ling.

$$5$$

Omil

$$5$$