42yz/7y^5z^4 eching

$$\frac { 42 y z } { 7 y ^ { 5 } z ^ { 4 } }$$

Baholash

$$\frac{6}{z^{3}y^{4}}$$

Tartib xususiyati koeffitsientidan foydalanish qadamlari

Ifodani qisqartirish uchun eksponent qoidalaridan foydalanish.

$$\frac{42^{1}y^{1}z^{1}}{7^{1}y^{5}z^{4}}$$

Ayni asosning daraja ko'rsatkichi bo'lish uchun maxrajning darajasini surat darajasidan bo'ling.

$$\frac{42^{1}}{7^{1}}y^{1-5}z^{1-4}$$

1 dan 5 ni ayirish.

$$\frac{42^{1}}{7^{1}}y^{-4}z^{1-4}$$

1 dan 4 ni ayirish.

$$\frac{42^{1}}{7^{1}}\times \frac{1}{y^{4}}z^{-3}$$

42 ni 7 ga bo'lish.

$$6\times \frac{1}{y^{4}}\times \frac{1}{z^{3}}$$

z ga nisbatan hosilani topish

$$-\frac{18}{\left(yz\right)^{4}}$$