Question

zapisz w jak najprostszej postaci.

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Answer 1

2 \sqrt{5}+3 \sqrt{5}= 5 \sqrt{5}

5\sqrt{7}- \frac{2}{3} \sqrt{7}= 4 \frac{1}{3} \sqrt{7}

2 \sqrt{2} - \frac{\sqrt{5}}{2} = \frac{4 \sqrt{2}}{2} - \frac{\sqrt{2}}{2}=

\frac{3 \sqrt{2}}{2}= 1,5 \sqrt{2}