frac{-12-sqrt{12^2-4-02*7}}{2-02} eching

$$\frac{ -12- \sqrt{ { 12 }^{ 2 } -4-02 \cdot 7 } }{ 2-02 }$$

Baholash

$$-\sqrt{35}-6\approx -11,916079783$$

Yechim qadamlari

2 daraja ko‘rsatkichini 12 ga hisoblang va 144 ni qiymatni oling.

$$\frac{-12-\sqrt{144-4-0\times 2\times 7}}{2-0\times 2}$$

140 olish uchun 144 dan 4 ni ayirish.

$$\frac{-12-\sqrt{140-0\times 2\times 7}}{2-0\times 2}$$

0 hosil qilish uchun 0 va 2 ni ko'paytirish.

$$\frac{-12-\sqrt{140-0\times 7}}{2-0\times 2}$$

0 hosil qilish uchun 0 va 7 ni ko'paytirish.

$$\frac{-12-\sqrt{140-0}}{2-0\times 2}$$

140 olish uchun 140 dan 0 ni ayirish.

$$\frac{-12-\sqrt{140}}{2-0\times 2}$$

Faktor: 140=2^{2}\times 35. \sqrt{2^{2}\times 35} koʻpaytmasining kvadrat ildizini \sqrt{2^{2}}\sqrt{35} kvadrat ildizlarining koʻpaytmasi sifatida qayta yozing. 2^{2} ning kvadrat ildizini chiqarish.

$$\frac{-12-2\sqrt{35}}{2-0\times 2}$$

0 hosil qilish uchun 0 va 2 ni ko'paytirish.

$$\frac{-12-2\sqrt{35}}{2-0}$$

2 olish uchun 2 dan 0 ni ayirish.

$$\frac{-12-2\sqrt{35}}{2}$$

-6-\sqrt{35} natijani olish uchun -12-2\sqrt{35} ning har bir ifodasini 2 ga bo‘ling.

$$-6-\sqrt{35}$$

Omil

$$-\sqrt{35}-6$$