x uchun yechish
x=-8
Grafik
Baham ko'rish
Klipbordga nusxa olish
\left(2x+3\right)\times 7-\left(2x-3\right)\times 5=4
x qiymati -\frac{3}{2},\frac{3}{2} qiymatlaridan birortasiga teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini \left(2x-3\right)\left(2x+3\right) ga, 2x-3,3+2x,4x^{2}-9 ning eng kichik karralisiga ko‘paytiring.
14x+21-\left(2x-3\right)\times 5=4
2x+3 ga 7 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
14x+21-\left(10x-15\right)=4
2x-3 ga 5 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
14x+21-10x+15=4
10x-15 teskarisini topish uchun har birining teskarisini toping.
4x+21+15=4
4x ni olish uchun 14x va -10x ni birlashtirish.
4x+36=4
36 olish uchun 21 va 15'ni qo'shing.
4x=4-36
Ikkala tarafdan 36 ni ayirish.
4x=-32
-32 olish uchun 4 dan 36 ni ayirish.
x=\frac{-32}{4}
Ikki tarafini 4 ga bo‘ling.
x=-8
-8 ni olish uchun -32 ni 4 ga bo‘ling.
Misollar
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\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]
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Oʻngga
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Chegaralar
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