-4ab/21c*14c^2/22a^2= eching

$$\frac { - 4 a b } { 21 c } \cdot \frac { 14 c ^ { 2 } } { 22 a ^ { 2 } } =$$

Baholash

$$-\frac{4bc}{33a}$$

Yechim qadamlari

Surat va maxrajdagi ikkala 2 ni qisqartiring.

$$\frac{-4ab}{21c}\times \frac{7c^{2}}{11a^{2}}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{-4ab}{21c} ni \frac{7c^{2}}{11a^{2}} ga ko‘paytiring.

$$\frac{-4ab\times 7c^{2}}{21c\times 11a^{2}}$$

Surat va maxrajdagi ikkala 7ac ni qisqartiring.

$$\frac{-4bc}{3\times 11a}$$

33 hosil qilish uchun 3 va 11 ni ko'paytirish.

$$\frac{-4bc}{33a}$$

a ga nisbatan hosilani topish

$$\frac{4bc}{33a^{2}}$$