2*5^2-28^2:4^2 eching

$$2 \cdot 5 ^ { 2 } - 28 ^ { 2 } : 4 ^ { 2 }$$

Baholash

$$1$$

Yechim qadamlari

2 daraja ko‘rsatkichini 5 ga hisoblang va 25 ni qiymatni oling.

$$2\times 25-\frac{28^{2}}{4^{2}}$$

50 hosil qilish uchun 2 va 25 ni ko'paytirish.

$$50-\frac{28^{2}}{4^{2}}$$

2 daraja ko‘rsatkichini 28 ga hisoblang va 784 ni qiymatni oling.

$$50-\frac{784}{4^{2}}$$

2 daraja ko‘rsatkichini 4 ga hisoblang va 16 ni qiymatni oling.

$$50-\frac{784}{16}$$

49 ni olish uchun 784 ni 16 ga bo‘ling.

$$50-49$$

1 olish uchun 50 dan 49 ni ayirish.

$$1$$

Omil

$$1$$