ГДЗ по алгебре 8 класс Макарычев ФГОС Задание 313

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Пояснение.

Решение.

\[\textbf{а)}\ x^{2} = 36\]

\[x = \sqrt{36}\]

\[x = \pm 6.\]

\[\textbf{б)}\ x^{2} = 0,49\]

\[x = \sqrt{0,49}\]

\[x = \pm 0,7.\]

\[\textbf{в)}\ x^{2} = 121\]

\[x = \sqrt{121}\]

\[x = \pm 11.\]

\[\textbf{г)}\ x² = 11\]

\[x = \pm \sqrt{11}.\]

\[\textbf{д)}\ x^{2} = 8\]

\[x = \sqrt{8}\]

\[x = \pm 2\sqrt{2}.\]

\[\textbf{е)}\ x² = 2,5\]

\[x = \sqrt{2,5}\]

\[x = \pm 5\sqrt{0,1}.\]