frac{2-frac{2sqrt{30}}{5}}{2/5} eching

$$\frac { 2 - \frac { 2 \sqrt { 30 } } { 5 } } { \frac { 2 } { 5 } }$$

Baholash

$$5-\sqrt{30}\approx -0,477225575$$

Qisqa yechim qadamlari

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. 2 ni \frac{5}{5} marotabaga ko'paytirish.

$$\frac{\frac{2\times 5}{5}-\frac{2\sqrt{30}}{5}}{\frac{2}{5}}$$

\frac{2\times 5}{5} va \frac{2\sqrt{30}}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\frac{2\times 5-2\sqrt{30}}{5}}{\frac{2}{5}}$$

2\times 5-2\sqrt{30} ichidagi ko‘paytirishlarni bajaring.

$$\frac{\frac{10-2\sqrt{30}}{5}}{\frac{2}{5}}$$

\frac{10-2\sqrt{30}}{5} ni \frac{2}{5} ga bo'lish \frac{10-2\sqrt{30}}{5} ga k'paytirish \frac{2}{5} ga qaytarish.

$$\frac{\left(10-2\sqrt{30}\right)\times 5}{5\times 2}$$

Surat va maxrajdagi ikkala 5 ni qisqartiring.

$$\frac{-2\sqrt{30}+10}{2}$$

5-\sqrt{30} natijani olish uchun -2\sqrt{30}+10 ning har bir ifodasini 2 ga bo‘ling.

$$5-\sqrt{30}$$

Omil

$$5-\sqrt{30}$$