Ответ:
[tex]33.[/tex]
Объяснение:
[tex] \displaystyle\sqrt{( - 7) {}^{4} } - \frac{2 \times \sqrt{160} }{ \sqrt{2,5} } = \sqrt{(( - 7) {}^{2} ) {}^{2} } - 2 \times \sqrt{ \frac{160}{2,5} } = ( - 7) {}^{2} - 2 \times \sqrt{64} = 49 - 2 \times 8 = 49 - 16 = 33.[/tex]
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Ответ:
[tex]33.[/tex]
Объяснение:
[tex] \displaystyle\sqrt{( - 7) {}^{4} } - \frac{2 \times \sqrt{160} }{ \sqrt{2,5} } = \sqrt{(( - 7) {}^{2} ) {}^{2} } - 2 \times \sqrt{ \frac{160}{2,5} } = ( - 7) {}^{2} - 2 \times \sqrt{64} = 49 - 2 \times 8 = 49 - 16 = 33.[/tex]