2(3/4)^2-4(3/4)-10 eching

$$2 ( \frac { 3 } { 4 } ) ^ { 2 } - 4 ( \frac { 3 } { 4 } ) - 10$$

Baholash

$$-\frac{95}{8}=-11,875$$

Yechim qadamlari

2 daraja ko‘rsatkichini \frac{3}{4} ga hisoblang va \frac{9}{16} ni qiymatni oling.

$$2\times \frac{9}{16}-4\times \frac{3}{4}-10$$

2\times \frac{9}{16} ni yagona kasrga aylantiring.

$$\frac{2\times 9}{16}-4\times \frac{3}{4}-10$$

18 hosil qilish uchun 2 va 9 ni ko'paytirish.

$$\frac{18}{16}-4\times \frac{3}{4}-10$$

\frac{18}{16} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{9}{8}-4\times \frac{3}{4}-10$$

4 va 4 ni qisqartiring.

$$\frac{9}{8}-3-10$$

3 ni \frac{24}{8} kasrga o‘giring.

$$\frac{9}{8}-\frac{24}{8}-10$$

\frac{9}{8} va \frac{24}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{9-24}{8}-10$$

-15 olish uchun 9 dan 24 ni ayirish.

$$-\frac{15}{8}-10$$

10 ni \frac{80}{8} kasrga o‘giring.

$$-\frac{15}{8}-\frac{80}{8}$$

-\frac{15}{8} va \frac{80}{8} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{-15-80}{8}$$

-95 olish uchun -15 dan 80 ni ayirish.

$$-\frac{95}{8}$$

Omil

$$-\frac{95}{8} = -11\frac{7}{8} = -11,875$$