y uchun yechish
y=3
Grafik
Baham ko'rish
Klipbordga nusxa olish
\left(y+2\right)\times 4-\left(6y-4\right)=\left(y-2\right)\times 6
y qiymati -2,2 qiymatlaridan birortasiga teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini \left(y-2\right)\left(y+2\right) ga, y-2,y^{2}-4,y+2 ning eng kichik karralisiga ko‘paytiring.
4y+8-\left(6y-4\right)=\left(y-2\right)\times 6
y+2 ga 4 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
4y+8-6y+4=\left(y-2\right)\times 6
6y-4 teskarisini topish uchun har birining teskarisini toping.
-2y+8+4=\left(y-2\right)\times 6
-2y ni olish uchun 4y va -6y ni birlashtirish.
-2y+12=\left(y-2\right)\times 6
12 olish uchun 8 va 4'ni qo'shing.
-2y+12=6y-12
y-2 ga 6 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
-2y+12-6y=-12
Ikkala tarafdan 6y ni ayirish.
-8y+12=-12
-8y ni olish uchun -2y va -6y ni birlashtirish.
-8y=-12-12
Ikkala tarafdan 12 ni ayirish.
-8y=-24
-24 olish uchun -12 dan 12 ni ayirish.
y=\frac{-24}{-8}
Ikki tarafini -8 ga bo‘ling.
y=3
3 ni olish uchun -24 ni -8 ga bo‘ling.
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}