x uchun yechish
x=8
x=-8
Grafik
Viktorina
Polynomial
x ^ { 2 } = 64
Baham ko'rish
Klipbordga nusxa olish
x^{2}-64=0
Ikkala tarafdan 64 ni ayirish.
\left(x-8\right)\left(x+8\right)=0
Hisoblang: x^{2}-64. x^{2}-64 ni x^{2}-8^{2} sifatida qaytadan yozish. Kvadratlarning farqini ushbu formula bilan hisoblash mumkin: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
x=8 x=-8
Tenglamani yechish uchun x-8=0 va x+8=0 ni yeching.
x=8 x=-8
Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.
x^{2}-64=0
Ikkala tarafdan 64 ni ayirish.
x=\frac{0±\sqrt{0^{2}-4\left(-64\right)}}{2}
Ushbu tenglama standart shaklidadir: ax^{2}+bx+c=0. Kvadrat tenglama formulasida, \frac{-b±\sqrt{b^{2}-4ac}}{2a} 1 ni a, 0 ni b va -64 ni c bilan almashtiring.
x=\frac{0±\sqrt{-4\left(-64\right)}}{2}
0 kvadratini chiqarish.
x=\frac{0±\sqrt{256}}{2}
-4 ni -64 marotabaga ko'paytirish.
x=\frac{0±16}{2}
256 ning kvadrat ildizini chiqarish.
x=8
x=\frac{0±16}{2} tenglamasini yeching, bunda ± musbat. 16 ni 2 ga bo'lish.
x=-8
x=\frac{0±16}{2} tenglamasini yeching, bunda ± manfiy. -16 ni 2 ga bo'lish.
x=8 x=-8
Tenglama yechildi.
Misollar
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