+4+-frac{sqrt{4^2-4(2)(1)}}{2(2)} eching

$$+4+- \frac{ \sqrt{ { 4 }^{ 2 } -4(2)(1) } }{ 2(2) }$$

Baholash

$$-\frac{\sqrt{2}}{2}+4\approx 3,292893219$$

Yechim qadamlari

2 daraja ko‘rsatkichini 4 ga hisoblang va 16 ni qiymatni oling.

$$4-\frac{\sqrt{16-4\times 2\times 1}}{2\times 2}$$

8 hosil qilish uchun 4 va 2 ni ko'paytirish.

$$4-\frac{\sqrt{16-8\times 1}}{2\times 2}$$

8 hosil qilish uchun 8 va 1 ni ko'paytirish.

$$4-\frac{\sqrt{16-8}}{2\times 2}$$

8 olish uchun 16 dan 8 ni ayirish.

$$4-\frac{\sqrt{8}}{2\times 2}$$

Faktor: 8=2^{2}\times 2. \sqrt{2^{2}\times 2} koʻpaytmasining kvadrat ildizini \sqrt{2^{2}}\sqrt{2} kvadrat ildizlarining koʻpaytmasi sifatida qayta yozing. 2^{2} ning kvadrat ildizini chiqarish.

$$4-\frac{2\sqrt{2}}{2\times 2}$$

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

$$4-\frac{2\sqrt{2}}{4}$$

\frac{1}{2}\sqrt{2} ni olish uchun 2\sqrt{2} ni 4 ga bo‘ling.

$$4-\frac{1}{2}\sqrt{2}$$

Omil

$$\frac{8 - \sqrt{2}}{2} = 3,2928932188134525$$