f(x)=7^2+3(7)/7^2-7= eching

$$f ( x ) = \frac { 7 ^ { 2 } + 3 ( 7 ) } { 7 ^ { 2 } - 7 } =$$

Baholash

$$\frac{5}{3}\approx 1,666666667$$

Yechim qadamlari

2 daraja ko‘rsatkichini 7 ga hisoblang va 49 ni qiymatni oling.

$$\frac{49+3\times 7}{7^{2}-7}$$

21 hosil qilish uchun 3 va 7 ni ko'paytirish.

$$\frac{49+21}{7^{2}-7}$$

70 olish uchun 49 va 21'ni qo'shing.

$$\frac{70}{7^{2}-7}$$

2 daraja ko‘rsatkichini 7 ga hisoblang va 49 ni qiymatni oling.

$$\frac{70}{49-7}$$

42 olish uchun 49 dan 7 ni ayirish.

$$\frac{70}{42}$$

\frac{70}{42} ulushini 14 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{5}{3}$$

Omil

$$\frac{5}{3} = 1\frac{2}{3} = 1,6666666666666667$$