(-3x^5y^-8)(5x^-1y) eching

$$( - 3 x ^ { 5 } y ^ { - 8 } ) ( 5 x ^ { - 1 } y )$$

Baholash

$$-\frac{15x^{4}}{y^{7}}$$

Ko'paytirishning kommutativ xususiyatdan foydalanish qadamlari

Ifodani qisqartirish uchun eksponent qoidalaridan foydalanish.

$$\left(-3\right)^{1}x^{5}y^{-8}\times 5^{1}\times \frac{1}{x}y^{1}$$

Ko'paytirishning kommutativ xususiyatidan foydalanish.

$$\left(-3\right)^{1}\times 5^{1}x^{5}\times \frac{1}{x}y^{-8}y^{1}$$

Ayni daraja ko'rsatkichlarini ko'paytirish uchun ularning darajalarini qo'shing.

$$\left(-3\right)^{1}\times 5^{1}x^{5-1}y^{-8+1}$$

5 va -1 belgilarini qo'shish.

$$\left(-3\right)^{1}\times 5^{1}x^{4}y^{-8+1}$$

-8 va 1 belgilarini qo'shish.

$$\left(-3\right)^{1}\times 5^{1}x^{4}y^{-7}$$

-3 ni 5 marotabaga ko'paytirish.

$$-15x^{4}\times \frac{1}{y^{7}}$$

x ga nisbatan hosilani topish

$$-\frac{60x^{3}}{y^{7}}$$