t*4/5(30-4t)*1/2 eching

$$t \cdot \frac { 4 } { 5 } ( 30 - 4 t ) \cdot \frac { 1 } { 2 }$$

Baholash

$$\frac{4t\left(15-2t\right)}{5}$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{4}{5} ni \frac{1}{2} ga ko‘paytiring.

$$t\times \frac{4\times 1}{5\times 2}\left(30-4t\right)$$

\frac{4\times 1}{5\times 2} kasridagi ko‘paytirishlarni bajaring.

$$t\times \frac{4}{10}\left(30-4t\right)$$

\frac{4}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$t\times \frac{2}{5}\left(30-4t\right)$$

t\times \frac{2}{5} ga 30-4t ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$t\times \frac{2}{5}\times 30+t\times \frac{2}{5}\left(-4\right)t$$

t^{2} hosil qilish uchun t va t ni ko'paytirish.

$$t\times \frac{2}{5}\times 30+t^{2}\times \frac{2}{5}\left(-4\right)$$

\frac{2}{5}\times 30 ni yagona kasrga aylantiring.

$$t\times \frac{2\times 30}{5}+t^{2}\times \frac{2}{5}\left(-4\right)$$

60 hosil qilish uchun 2 va 30 ni ko'paytirish.

$$t\times \frac{60}{5}+t^{2}\times \frac{2}{5}\left(-4\right)$$

12 ni olish uchun 60 ni 5 ga bo‘ling.

$$t\times 12+t^{2}\times \frac{2}{5}\left(-4\right)$$

\frac{2}{5}\left(-4\right) ni yagona kasrga aylantiring.

$$t\times 12+t^{2}\times \frac{2\left(-4\right)}{5}$$

-8 hosil qilish uchun 2 va -4 ni ko'paytirish.

$$t\times 12+t^{2}\times \frac{-8}{5}$$

\frac{-8}{5} kasri manfiy belgini olib tashlash bilan -\frac{8}{5} sifatida qayta yozilishi mumkin.

$$t\times 12+t^{2}\left(-\frac{8}{5}\right)$$

Kengaytirish

$$-\frac{8t^{2}}{5}+12t$$

Yechim qadamlari

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{4}{5} ni \frac{1}{2} ga ko‘paytiring.

$$t\times \frac{4\times 1}{5\times 2}\left(30-4t\right)$$

\frac{4\times 1}{5\times 2} kasridagi ko‘paytirishlarni bajaring.

$$t\times \frac{4}{10}\left(30-4t\right)$$

\frac{4}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$t\times \frac{2}{5}\left(30-4t\right)$$

t\times \frac{2}{5} ga 30-4t ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$t\times \frac{2}{5}\times 30+t\times \frac{2}{5}\left(-4\right)t$$

t^{2} hosil qilish uchun t va t ni ko'paytirish.

$$t\times \frac{2}{5}\times 30+t^{2}\times \frac{2}{5}\left(-4\right)$$

\frac{2}{5}\times 30 ni yagona kasrga aylantiring.

$$t\times \frac{2\times 30}{5}+t^{2}\times \frac{2}{5}\left(-4\right)$$

60 hosil qilish uchun 2 va 30 ni ko'paytirish.

$$t\times \frac{60}{5}+t^{2}\times \frac{2}{5}\left(-4\right)$$

12 ni olish uchun 60 ni 5 ga bo‘ling.

$$t\times 12+t^{2}\times \frac{2}{5}\left(-4\right)$$

\frac{2}{5}\left(-4\right) ni yagona kasrga aylantiring.

$$t\times 12+t^{2}\times \frac{2\left(-4\right)}{5}$$

-8 hosil qilish uchun 2 va -4 ni ko'paytirish.

$$t\times 12+t^{2}\times \frac{-8}{5}$$

\frac{-8}{5} kasri manfiy belgini olib tashlash bilan -\frac{8}{5} sifatida qayta yozilishi mumkin.

$$t\times 12+t^{2}\left(-\frac{8}{5}\right)$$