75*(3/8+07)-(5/2)^2= eching

$$75 \cdot ( \frac { 3 } { 8 } + 07 ) - ( \frac { 5 } { 2 } ) ^ { 2 } =$$

Baholash

$$\frac{175}{8}=21,875$$

Yechim qadamlari

0 hosil qilish uchun 0 va 7 ni ko'paytirish.

$$75\left(\frac{3}{8}+0\right)-\left(\frac{5}{2}\right)^{2}$$

\frac{3}{8} olish uchun \frac{3}{8} va 0'ni qo'shing.

$$75\times \frac{3}{8}-\left(\frac{5}{2}\right)^{2}$$

75\times \frac{3}{8} ni yagona kasrga aylantiring.

$$\frac{75\times 3}{8}-\left(\frac{5}{2}\right)^{2}$$

225 hosil qilish uchun 75 va 3 ni ko'paytirish.

$$\frac{225}{8}-\left(\frac{5}{2}\right)^{2}$$

2 daraja ko‘rsatkichini \frac{5}{2} ga hisoblang va \frac{25}{4} ni qiymatni oling.

$$\frac{225}{8}-\frac{25}{4}$$

8 va 4 ning eng kichik umumiy karralisi 8 ga teng. \frac{225}{8} va \frac{25}{4} ni 8 maxraj bilan kasrlarga aylantirib oling.

$$\frac{225}{8}-\frac{50}{8}$$

\frac{225}{8} va \frac{50}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{225-50}{8}$$

175 olish uchun 225 dan 50 ni ayirish.

$$\frac{175}{8}$$

Omil

$$\frac{5 ^ {2} \cdot 7}{2 ^ {3}} = 21\frac{7}{8} = 21,875$$