2-{left(-7/4right)}^2+-5/8 eching

$$2- { \left(- \frac{ 7 }{ 4 } \right) }^{ 2 } +- \frac{ 5 }{ 8 }$$

Baholash

$$-\frac{27}{16}=-1,6875$$

Yechim qadamlari

2 daraja ko‘rsatkichini -\frac{7}{4} ga hisoblang va \frac{49}{16} ni qiymatni oling.

$$2-\frac{49}{16}-\frac{5}{8}$$

2 ni \frac{32}{16} kasrga o‘giring.

$$\frac{32}{16}-\frac{49}{16}-\frac{5}{8}$$

\frac{32}{16} va \frac{49}{16} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{32-49}{16}-\frac{5}{8}$$

-17 olish uchun 32 dan 49 ni ayirish.

$$-\frac{17}{16}-\frac{5}{8}$$

16 va 8 ning eng kichik umumiy karralisi 16 ga teng. -\frac{17}{16} va \frac{5}{8} ni 16 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{17}{16}-\frac{10}{16}$$

-\frac{17}{16} va \frac{10}{16} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-17-10}{16}$$

-27 olish uchun -17 dan 10 ni ayirish.

$$-\frac{27}{16}$$

Omil

$$-\frac{27}{16} = -1\frac{11}{16} = -1,6875$$