12-2(7-4)^2div4 eching

$$12-2(7-4)^2 \div 4$$

Baholash

$$\frac{15}{2}=7,5$$

Yechim qadamlari

3 olish uchun 7 dan 4 ni ayirish.

$$12-\frac{2\times 3^{2}}{4}$$

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

$$12-\frac{2\times 9}{4}$$

18 hosil qilish uchun 2 va 9 ni ko'paytirish.

$$12-\frac{18}{4}$$

\frac{18}{4} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$12-\frac{9}{2}$$

\frac{15}{2} olish uchun 12 dan \frac{9}{2} ni ayirish.

$$\frac{15}{2}$$

Omil

$$\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7,5$$