Question

3 × (radical din 3 - radical din 18) + 9 radical din 2 = ​

Answer 1

Răspuns:

$3 \times ( \sqrt{3 } - \sqrt{18}) + 9 \sqrt{2} = \\ \\ 3 \times ( \sqrt{3} - 3 \sqrt{2} ) + 9 \sqrt{2} = \\ \\ 3 \sqrt{3} - 9 \sqrt{2} + 9 \sqrt{2} = \\ \\ 3 \sqrt{3}$

Answer 2

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