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Cum descompun radical din 801?

Răspuns :


[tex] \sqrt{801} = \sqrt{3 \times 3 \times 89} = \sqrt{(3 \times 3) \times 89} = \sqrt{ {3}^{2} \times 89 } = 3 \sqrt{89} [/tex]

[tex]\it 801\ \vdots\ 9 \Longrightarrow \sqrt{801}=\sqrt{9\cdot89}=3\sqrt{89}[/tex]