(8-4)(3-15)-6(-8+7)^2/7-9 eching

$$\frac { ( 8 - 4 ) ( 3 - 15 ) - 6 ( - 8 + 7 ) ^ { 2 } } { 7 - 9 }$$

Baholash

$$27$$

Yechim qadamlari

4 olish uchun 8 dan 4 ni ayirish.

$$\frac{4\left(3-15\right)-6\left(-8+7\right)^{2}}{7-9}$$

-12 olish uchun 3 dan 15 ni ayirish.

$$\frac{4\left(-12\right)-6\left(-8+7\right)^{2}}{7-9}$$

-48 hosil qilish uchun 4 va -12 ni ko'paytirish.

$$\frac{-48-6\left(-8+7\right)^{2}}{7-9}$$

-1 olish uchun -8 va 7'ni qo'shing.

$$\frac{-48-6\left(-1\right)^{2}}{7-9}$$

2 daraja ko‘rsatkichini -1 ga hisoblang va 1 ni qiymatni oling.

$$\frac{-48-6\times 1}{7-9}$$

6 hosil qilish uchun 6 va 1 ni ko'paytirish.

$$\frac{-48-6}{7-9}$$

-54 olish uchun -48 dan 6 ni ayirish.

$$\frac{-54}{7-9}$$

-2 olish uchun 7 dan 9 ni ayirish.

$$\frac{-54}{-2}$$

27 ni olish uchun -54 ni -2 ga bo‘ling.

$$27$$

Omil

$$3^{3}$$