168=v^2 eching

$$168 = v ^ { 2 }$$

v uchun yechish

$$v=2\sqrt{42}\approx 12,961481397$$

$$v=-2\sqrt{42}\approx -12,961481397$$

Kvadrat ildizini topish bo'yicha qadamlar

Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.

$$v^{2}=168$$

Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.

$$v=2\sqrt{42} v=-2\sqrt{42}$$

Kvadrat tenglamalaridan foydalanish qoidalari

Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.

$$v^{2}=168$$

Ikkala tarafdan 168 ni ayirish.

$$v^{2}-168=0$$

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 -168 ni c bilan almashtiring.

$$v=\frac{0±\sqrt{0^{2}-4\left(-168\right)}}{2}$$

0 kvadratini chiqarish.

$$v=\frac{0±\sqrt{-4\left(-168\right)}}{2}$$

-4 ni -168 marotabaga ko'paytirish.

$$v=\frac{0±\sqrt{672}}{2}$$

672 ning kvadrat ildizini chiqarish.

$$v=\frac{0±4\sqrt{42}}{2}$$

v=\frac{0±4\sqrt{42}}{2} tenglamasini yeching, bunda ± musbat.

$$v=2\sqrt{42}$$

v=\frac{0±4\sqrt{42}}{2} tenglamasini yeching, bunda ± manfiy.

$$v=-2\sqrt{42}$$

Tenglama yechildi.

$$v=2\sqrt{42} v=-2\sqrt{42}$$