x uchun yechish
x = \frac{\sqrt{7} + 1}{2} \approx 1,822875656
Grafik
Baham ko'rish
Klipbordga nusxa olish
\sqrt{7}-x-x=-1
Ikkala tarafdan x ni ayirish.
\sqrt{7}-2x=-1
-2x ni olish uchun -x va -x ni birlashtirish.
-2x=-1-\sqrt{7}
Ikkala tarafdan \sqrt{7} ni ayirish.
-2x=-\sqrt{7}-1
Tenglama standart shaklda.
\frac{-2x}{-2}=\frac{-\sqrt{7}-1}{-2}
Ikki tarafini -2 ga bo‘ling.
x=\frac{-\sqrt{7}-1}{-2}
-2 ga bo'lish -2 ga ko'paytirishni bekor qiladi.
x=\frac{\sqrt{7}+1}{2}
-1-\sqrt{7} ni -2 ga bo'lish.
Misollar
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