Baholash
20n^{2}-2n-\frac{2}{5}
Kengaytirish
20n^{2}-2n-\frac{2}{5}
Baham ko'rish
Klipbordga nusxa olish
20n^{2}+5n\left(-\frac{4}{5}\right)+\frac{1}{2}\times 4n+\frac{1}{2}\left(-\frac{4}{5}\right)
5n+\frac{1}{2} ifodaning har bir elementini 4n-\frac{4}{5} ifodaning har bir elementiga ko‘paytirish orqali taqsimot qonuni xususiyatlarini qo‘llash mumkin.
20n^{2}-4n+\frac{1}{2}\times 4n+\frac{1}{2}\left(-\frac{4}{5}\right)
5 va 5 ni qisqartiring.
20n^{2}-4n+\frac{4}{2}n+\frac{1}{2}\left(-\frac{4}{5}\right)
\frac{4}{2} hosil qilish uchun \frac{1}{2} va 4 ni ko'paytirish.
20n^{2}-4n+2n+\frac{1}{2}\left(-\frac{4}{5}\right)
2 ni olish uchun 4 ni 2 ga bo‘ling.
20n^{2}-2n+\frac{1}{2}\left(-\frac{4}{5}\right)
-2n ni olish uchun -4n va 2n ni birlashtirish.
20n^{2}-2n+\frac{1\left(-4\right)}{2\times 5}
Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{2} ni -\frac{4}{5} ga ko‘paytiring.
20n^{2}-2n+\frac{-4}{10}
\frac{1\left(-4\right)}{2\times 5} kasridagi ko‘paytirishlarni bajaring.
20n^{2}-2n-\frac{2}{5}
\frac{-4}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
20n^{2}+5n\left(-\frac{4}{5}\right)+\frac{1}{2}\times 4n+\frac{1}{2}\left(-\frac{4}{5}\right)
5n+\frac{1}{2} ifodaning har bir elementini 4n-\frac{4}{5} ifodaning har bir elementiga ko‘paytirish orqali taqsimot qonuni xususiyatlarini qo‘llash mumkin.
20n^{2}-4n+\frac{1}{2}\times 4n+\frac{1}{2}\left(-\frac{4}{5}\right)
5 va 5 ni qisqartiring.
20n^{2}-4n+\frac{4}{2}n+\frac{1}{2}\left(-\frac{4}{5}\right)
\frac{4}{2} hosil qilish uchun \frac{1}{2} va 4 ni ko'paytirish.
20n^{2}-4n+2n+\frac{1}{2}\left(-\frac{4}{5}\right)
2 ni olish uchun 4 ni 2 ga bo‘ling.
20n^{2}-2n+\frac{1}{2}\left(-\frac{4}{5}\right)
-2n ni olish uchun -4n va 2n ni birlashtirish.
20n^{2}-2n+\frac{1\left(-4\right)}{2\times 5}
Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{1}{2} ni -\frac{4}{5} ga ko‘paytiring.
20n^{2}-2n+\frac{-4}{10}
\frac{1\left(-4\right)}{2\times 5} kasridagi ko‘paytirishlarni bajaring.
20n^{2}-2n-\frac{2}{5}
\frac{-4}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
Misollar
Ikkilik tenglama
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Chiziqli tenglama
y = 3x + 4
Arifmetik
699 * 533
Matritsa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simli tenglama
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differensatsiya
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Oʻngga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Chegaralar
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}