-frac{2sqrt{2-y}}{-2}=2-4/-2 eching

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

y uchun yechish

$$y=1$$

Ildizli tenglamalarni yechish qadamlari

Tenglamaning ikkala tarafini -2 ga ko'paytirish.

$$-2\sqrt{2-y}=2-4$$

-2 olish uchun 2 dan 4 ni ayirish.

$$-2\sqrt{2-y}=-2$$

Ikki tarafini -2 ga bo‘ling.

$$\sqrt{2-y}=\frac{-2}{-2}$$

1 ni olish uchun -2 ni -2 ga bo‘ling.

$$\sqrt{2-y}=1$$

Tenglamaning ikkala taraf kvadratini chiqarish.

$$-y+2=1$$

Tenglamaning ikkala tarafidan 2 ni ayirish.

$$-y+2-2=1-2$$

O‘zidan 2 ayirilsa 0 qoladi.

$$-y=1-2$$

1 dan 2 ni ayirish.

$$-y=-1$$

Ikki tarafini -1 ga bo‘ling.

$$\frac{-y}{-1}=-\frac{1}{-1}$$

-1 ga bo'lish -1 ga ko'paytirishni bekor qiladi.

$$y=-\frac{1}{-1}$$

-1 ni -1 ga bo'lish.

$$y=1$$