x uchun yechish
x=\sqrt{7}+5\approx 7,645751311
x=5-\sqrt{7}\approx 2,354248689
Grafik
Viktorina
Polynomial
( x - 5 ) ^ { 2 } = 7
Baham ko'rish
Klipbordga nusxa olish
x-5=\sqrt{7} x-5=-\sqrt{7}
Tenglamaning ikkala tarafining kvadrat ildizini chiqarish.
x-5-\left(-5\right)=\sqrt{7}-\left(-5\right) x-5-\left(-5\right)=-\sqrt{7}-\left(-5\right)
5 ni tenglamaning ikkala tarafiga qo'shish.
x=\sqrt{7}-\left(-5\right) x=-\sqrt{7}-\left(-5\right)
O‘zidan -5 ayirilsa 0 qoladi.
x=\sqrt{7}+5
\sqrt{7} dan -5 ni ayirish.
x=5-\sqrt{7}
-\sqrt{7} dan -5 ni ayirish.
x=\sqrt{7}+5 x=5-\sqrt{7}
Tenglama yechildi.
Misollar
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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Chegaralar
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