x^2=78 eching

$$x ^ { 2 } = 78$$

x uchun yechish

$$x=\sqrt{78}\approx 8,831760866$$

$$x=-\sqrt{78}\approx -8,831760866$$

Kvadrat ildizini topish bo'yicha qadamlar

Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.

$$x=\sqrt{78} x=-\sqrt{78}$$

Kvadrat tenglamalaridan foydalanish qoidalari

Ikkala tarafdan 78 ni ayirish.

$$x^{2}-78=0$$

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 -78 ni c bilan almashtiring.

$$x=\frac{0±\sqrt{0^{2}-4\left(-78\right)}}{2}$$

0 kvadratini chiqarish.

$$x=\frac{0±\sqrt{-4\left(-78\right)}}{2}$$

-4 ni -78 marotabaga ko'paytirish.

$$x=\frac{0±\sqrt{312}}{2}$$

312 ning kvadrat ildizini chiqarish.

$$x=\frac{0±2\sqrt{78}}{2}$$

x=\frac{0±2\sqrt{78}}{2} tenglamasini yeching, bunda ± musbat.

$$x=\sqrt{78}$$

x=\frac{0±2\sqrt{78}}{2} tenglamasini yeching, bunda ± manfiy.

$$x=-\sqrt{78}$$

Tenglama yechildi.

$$x=\sqrt{78} x=-\sqrt{78}$$