3^3-7(3)^2-6(3)+42 eching

$$3 ^ { 3 } - 7 ( 3 ) ^ { 2 } - 6 ( 3 ) + 42$$

Baholash

$$-12$$

Yechim qadamlari

3 daraja ko‘rsatkichini 3 ga hisoblang va 27 ni qiymatni oling.

$$27-7\times 3^{2}-6\times 3+42$$

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

$$27-7\times 9-6\times 3+42$$

63 hosil qilish uchun 7 va 9 ni ko'paytirish.

$$27-63-6\times 3+42$$

-36 olish uchun 27 dan 63 ni ayirish.

$$-36-6\times 3+42$$

18 hosil qilish uchun 6 va 3 ni ko'paytirish.

$$-36-18+42$$

-54 olish uchun -36 dan 18 ni ayirish.

$$-54+42$$

-12 olish uchun -54 va 42'ni qo'shing.

$$-12$$

Omil

$$-12$$