2*4/4^2+3-(-2)*4/(-2)^2+3 eching

$$\frac { 2 \times 4 } { 4 ^ { 2 } + 3 } - \frac { ( - 2 ) \times 4 } { ( - 2 ) ^ { 2 } + 3 }$$

Baholash

$$\frac{208}{133}\approx 1,563909774$$

Yechim qadamlari

8 hosil qilish uchun 2 va 4 ni ko'paytirish.

$$\frac{8}{4^{2}+3}-\frac{-2\times 4}{\left(-2\right)^{2}+3}$$

2 daraja ko‘rsatkichini 4 ga hisoblang va 16 ni qiymatni oling.

$$\frac{8}{16+3}-\frac{-2\times 4}{\left(-2\right)^{2}+3}$$

19 olish uchun 16 va 3'ni qo'shing.

$$\frac{8}{19}-\frac{-2\times 4}{\left(-2\right)^{2}+3}$$

-8 hosil qilish uchun -2 va 4 ni ko'paytirish.

$$\frac{8}{19}-\frac{-8}{\left(-2\right)^{2}+3}$$

2 daraja ko‘rsatkichini -2 ga hisoblang va 4 ni qiymatni oling.

$$\frac{8}{19}-\frac{-8}{4+3}$$

7 olish uchun 4 va 3'ni qo'shing.

$$\frac{8}{19}-\frac{-8}{7}$$

\frac{-8}{7} kasri manfiy belgini olib tashlash bilan -\frac{8}{7} sifatida qayta yozilishi mumkin.

$$\frac{8}{19}-\left(-\frac{8}{7}\right)$$

-\frac{8}{7} ning teskarisi \frac{8}{7} ga teng.

$$\frac{8}{19}+\frac{8}{7}$$

19 va 7 ning eng kichik umumiy karralisi 133 ga teng. \frac{8}{19} va \frac{8}{7} ni 133 maxraj bilan kasrlarga aylantirib oling.

$$\frac{56}{133}+\frac{152}{133}$$

\frac{56}{133} va \frac{152}{133} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{56+152}{133}$$

208 olish uchun 56 va 152'ni qo'shing.

$$\frac{208}{133}$$

Omil

$$\frac{2 ^ {4} \cdot 13}{7 \cdot 19} = 1\frac{75}{133} = 1,5639097744360901$$