1/2n*[-3+(-5n+2)] eching

$$\frac { 1 } { 2 } n \times [ - 3 + ( - 5 n + 2 ) ]$$

Baholash

$$-\frac{n\left(5n+1\right)}{2}$$

Yechim qadamlari

-1 olish uchun -3 va 2'ni qo'shing.

$$\frac{1}{2}n\left(-1-5n\right)$$

\frac{1}{2}n ga -1-5n ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$\frac{1}{2}n\left(-1\right)+\frac{1}{2}n\left(-5\right)n$$

n^{2} hosil qilish uchun n va n ni ko'paytirish.

$$\frac{1}{2}n\left(-1\right)+\frac{1}{2}n^{2}\left(-5\right)$$

-\frac{1}{2} hosil qilish uchun \frac{1}{2} va -1 ni ko'paytirish.

$$-\frac{1}{2}n+\frac{1}{2}n^{2}\left(-5\right)$$

\frac{-5}{2} hosil qilish uchun \frac{1}{2} va -5 ni ko'paytirish.

$$-\frac{1}{2}n+\frac{-5}{2}n^{2}$$

\frac{-5}{2} kasri manfiy belgini olib tashlash bilan -\frac{5}{2} sifatida qayta yozilishi mumkin.

$$-\frac{1}{2}n-\frac{5}{2}n^{2}$$

Kengaytirish

$$\frac{-5n^{2}-n}{2}$$

Yechim qadamlari

-1 olish uchun -3 va 2'ni qo'shing.

$$\frac{1}{2}n\left(-1-5n\right)$$

\frac{1}{2}n ga -1-5n ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$\frac{1}{2}n\left(-1\right)+\frac{1}{2}n\left(-5\right)n$$

n^{2} hosil qilish uchun n va n ni ko'paytirish.

$$\frac{1}{2}n\left(-1\right)+\frac{1}{2}n^{2}\left(-5\right)$$

-\frac{1}{2} hosil qilish uchun \frac{1}{2} va -1 ni ko'paytirish.

$$-\frac{1}{2}n+\frac{1}{2}n^{2}\left(-5\right)$$

\frac{-5}{2} hosil qilish uchun \frac{1}{2} va -5 ni ko'paytirish.

$$-\frac{1}{2}n+\frac{-5}{2}n^{2}$$

\frac{-5}{2} kasri manfiy belgini olib tashlash bilan -\frac{5}{2} sifatida qayta yozilishi mumkin.

$$-\frac{1}{2}n-\frac{5}{2}n^{2}$$