31.8^2-2*31.8*21.8+21.8^2 eching

$$31.8 ^ { 2 } - 2 \cdot 31.8 \cdot 21.8 + 21.8 ^ { 2 }$$

Baholash

$$100$$

Yechim qadamlari

2 daraja ko‘rsatkichini 31,8 ga hisoblang va 1011,24 ni qiymatni oling.

$$1011,24-2\times 31,8\times 21,8+21,8^{2}$$

63,6 hosil qilish uchun 2 va 31,8 ni ko'paytirish.

$$1011,24-63,6\times 21,8+21,8^{2}$$

1386,48 hosil qilish uchun 63,6 va 21,8 ni ko'paytirish.

$$1011,24-1386,48+21,8^{2}$$

-375,24 olish uchun 1011,24 dan 1386,48 ni ayirish.

$$-375,24+21,8^{2}$$

2 daraja ko‘rsatkichini 21,8 ga hisoblang va 475,24 ni qiymatni oling.

$$-375,24+475,24$$

100 olish uchun -375,24 va 475,24'ni qo'shing.

$$100$$

Omil

$$2^{2}\times 5^{2}$$