x uchun yechish
x=\sqrt{7}+7\approx 9,645751311
x=7-\sqrt{7}\approx 4,354248689
Grafik
Baham ko'rish
Klipbordga nusxa olish
x-7=\sqrt{7} x-7=-\sqrt{7}
Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.
x-7-\left(-7\right)=\sqrt{7}-\left(-7\right) x-7-\left(-7\right)=-\sqrt{7}-\left(-7\right)
7 ni tenglamaning ikkala tarafiga qo'shish.
x=\sqrt{7}-\left(-7\right) x=-\sqrt{7}-\left(-7\right)
O‘zidan -7 ayirilsa 0 qoladi.
x=\sqrt{7}+7
\sqrt{7} dan -7 ni ayirish.
x=7-\sqrt{7}
-\sqrt{7} dan -7 ni ayirish.
x=\sqrt{7}+7 x=7-\sqrt{7}
Tenglama yechildi.
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