-7+3*(-5+2^-2)-10:(-4+2) eching

$$- 7 + 3 \cdot ( - 5 + 2 ^ { - 2 } ) - 10 : ( - 4 + 2 )$$

Baholash

$$-\frac{65}{4}=-16,25$$

Yechim qadamlari

-2 daraja ko‘rsatkichini 2 ga hisoblang va \frac{1}{4} ni qiymatni oling.

$$-7+3\left(-5+\frac{1}{4}\right)-\frac{10}{-4+2}$$

-\frac{19}{4} olish uchun -5 va \frac{1}{4}'ni qo'shing.

$$-7+3\left(-\frac{19}{4}\right)-\frac{10}{-4+2}$$

-\frac{57}{4} hosil qilish uchun 3 va -\frac{19}{4} ni ko'paytirish.

$$-7-\frac{57}{4}-\frac{10}{-4+2}$$

-\frac{85}{4} olish uchun -7 dan \frac{57}{4} ni ayirish.

$$-\frac{85}{4}-\frac{10}{-4+2}$$

-2 olish uchun -4 va 2'ni qo'shing.

$$-\frac{85}{4}-\frac{10}{-2}$$

-5 ni olish uchun 10 ni -2 ga bo‘ling.

$$-\frac{85}{4}-\left(-5\right)$$

-5 ning teskarisi 5 ga teng.

$$-\frac{85}{4}+5$$

-\frac{65}{4} olish uchun -\frac{85}{4} va 5'ni qo'shing.

$$-\frac{65}{4}$$

Omil

$$-\frac{65}{4} = -16\frac{1}{4} = -16,25$$