x uchun yechish
x=-12
x=0
Grafik
Baham ko'rish
Klipbordga nusxa olish
x^{2}-6x-2x^{2}=6x
Ikkala tarafdan 2x^{2} ni ayirish.
-x^{2}-6x=6x
-x^{2} ni olish uchun x^{2} va -2x^{2} ni birlashtirish.
-x^{2}-6x-6x=0
Ikkala tarafdan 6x ni ayirish.
-x^{2}-12x=0
-12x ni olish uchun -6x va -6x ni birlashtirish.
x\left(-x-12\right)=0
x omili.
x=0 x=-12
Tenglamani yechish uchun x=0 va -x-12=0 ni yeching.
x^{2}-6x-2x^{2}=6x
Ikkala tarafdan 2x^{2} ni ayirish.
-x^{2}-6x=6x
-x^{2} ni olish uchun x^{2} va -2x^{2} ni birlashtirish.
-x^{2}-6x-6x=0
Ikkala tarafdan 6x ni ayirish.
-x^{2}-12x=0
-12x ni olish uchun -6x va -6x ni birlashtirish.
x=\frac{-\left(-12\right)±\sqrt{\left(-12\right)^{2}}}{2\left(-1\right)}
Ushbu tenglama standart shaklidadir: ax^{2}+bx+c=0. Kvadrat tenglama formulasida, \frac{-b±\sqrt{b^{2}-4ac}}{2a} -1 ni a, -12 ni b va 0 ni c bilan almashtiring.
x=\frac{-\left(-12\right)±12}{2\left(-1\right)}
\left(-12\right)^{2} ning kvadrat ildizini chiqarish.
x=\frac{12±12}{2\left(-1\right)}
-12 ning teskarisi 12 ga teng.
x=\frac{12±12}{-2}
2 ni -1 marotabaga ko'paytirish.
x=\frac{24}{-2}
x=\frac{12±12}{-2} tenglamasini yeching, bunda ± musbat. 12 ni 12 ga qo'shish.
x=-12
24 ni -2 ga bo'lish.
x=\frac{0}{-2}
x=\frac{12±12}{-2} tenglamasini yeching, bunda ± manfiy. 12 dan 12 ni ayirish.
x=0
0 ni -2 ga bo'lish.
x=-12 x=0
Tenglama yechildi.
x^{2}-6x-2x^{2}=6x
Ikkala tarafdan 2x^{2} ni ayirish.
-x^{2}-6x=6x
-x^{2} ni olish uchun x^{2} va -2x^{2} ni birlashtirish.
-x^{2}-6x-6x=0
Ikkala tarafdan 6x ni ayirish.
-x^{2}-12x=0
-12x ni olish uchun -6x va -6x ni birlashtirish.
\frac{-x^{2}-12x}{-1}=\frac{0}{-1}
Ikki tarafini -1 ga bo‘ling.
x^{2}+\left(-\frac{12}{-1}\right)x=\frac{0}{-1}
-1 ga bo'lish -1 ga ko'paytirishni bekor qiladi.
x^{2}+12x=\frac{0}{-1}
-12 ni -1 ga bo'lish.
x^{2}+12x=0
0 ni -1 ga bo'lish.
x^{2}+12x+6^{2}=6^{2}
12 ni bo‘lish, x shartining koeffitsienti, 2 ga 6 olish uchun. Keyin, 6 ning kvadratini tenglamaning ikkala tarafiga qo‘shing. Ushbu qadam tenglamaning chap qismini mukammal kvadrat sifatida hosil qiladi.
x^{2}+12x+36=36
6 kvadratini chiqarish.
\left(x+6\right)^{2}=36
x^{2}+12x+36 omili. Odatda, x^{2}+bx+c mukammal kvadrat bo'lsa, u doimo \left(x+\frac{b}{2}\right)^{2} omil sifatida bo'lishi mumkin.
\sqrt{\left(x+6\right)^{2}}=\sqrt{36}
Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.
x+6=6 x+6=-6
Qisqartirish.
x=0 x=-12
Tenglamaning ikkala tarafidan 6 ni ayirish.
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