1125-6+-15^2div-2 eching

$$1125-6+- { 15 }^{ 2 } \div -2$$

Baholash

$$\frac{2463}{2}=1231,5$$

Yechim qadamlari

1119 olish uchun 1125 dan 6 ni ayirish.

$$1119+\frac{-15^{2}}{-2}$$

2 daraja ko‘rsatkichini 15 ga hisoblang va 225 ni qiymatni oling.

$$1119+\frac{-225}{-2}$$

Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-225}{-2} kasrini \frac{225}{2} ga soddalashtirish mumkin.

$$1119+\frac{225}{2}$$

1119 ni \frac{2238}{2} kasrga o‘giring.

$$\frac{2238}{2}+\frac{225}{2}$$

\frac{2238}{2} va \frac{225}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{2238+225}{2}$$

2463 olish uchun 2238 va 225'ni qo'shing.

$$\frac{2463}{2}$$

Omil

$$\frac{3 \cdot 821}{2} = 1231\frac{1}{2} = 1231,5$$