n^2-2=26 eching

$$n ^ { 2 } - 2 = 26$$

n uchun yechish

$$n=2\sqrt{7}\approx 5,291502622$$

$$n=-2\sqrt{7}\approx -5,291502622$$

Kvadrat ildizini topish bo'yicha qadamlar

2 ni ikki tarafga qo’shing.

$$n^{2}=26+2$$

28 olish uchun 26 va 2'ni qo'shing.

$$n^{2}=28$$

Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.

$$n=2\sqrt{7} n=-2\sqrt{7}$$

Kvadrat tenglamalaridan foydalanish qoidalari

Ikkala tarafdan 26 ni ayirish.

$$n^{2}-2-26=0$$

-28 olish uchun -2 dan 26 ni ayirish.

$$n^{2}-28=0$$

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 -28 ni c bilan almashtiring.

$$n=\frac{0±\sqrt{0^{2}-4\left(-28\right)}}{2}$$

0 kvadratini chiqarish.

$$n=\frac{0±\sqrt{-4\left(-28\right)}}{2}$$

-4 ni -28 marotabaga ko'paytirish.

$$n=\frac{0±\sqrt{112}}{2}$$

112 ning kvadrat ildizini chiqarish.

$$n=\frac{0±4\sqrt{7}}{2}$$

n=\frac{0±4\sqrt{7}}{2} tenglamasini yeching, bunda ± musbat.

$$n=2\sqrt{7}$$

n=\frac{0±4\sqrt{7}}{2} tenglamasini yeching, bunda ± manfiy.

$$n=-2\sqrt{7}$$

Tenglama yechildi.

$$n=2\sqrt{7} n=-2\sqrt{7}$$