[tex]\displaystyle\bf\\2,2 < \sqrt{5} < 2,3 \ |\cdot(-1)\\\\-2,3 < -\sqrt{5} < -2,2\\\\-2,3+3 < -\sqrt{5} +3 < -2,2+3\\\\\boxed{0,7 < 3-\sqrt{5} < 0,8}[/tex]
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[tex]\displaystyle\bf\\2,2 < \sqrt{5} < 2,3 \ |\cdot(-1)\\\\-2,3 < -\sqrt{5} < -2,2\\\\-2,3+3 < -\sqrt{5} +3 < -2,2+3\\\\\boxed{0,7 < 3-\sqrt{5} < 0,8}[/tex]