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15 questions
25=\sqrt{25}=25=
5
-5
25
-25
√ -64
4
6
9
αδυνατη
√ 81+√ 36
8
7
10
15
3
81
−9=\sqrt{-9}=−9=
132
Αδύνατη
2
25+5=25+5\sqrt{25+5}=\sqrt{25}+\sqrt{5}25+5=25+5
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