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2014-10-26T17:53:40+02:00
2√18=2▪√18≈2× 4,24≈8,48
3√27=3▪√27≈3▪5,19≈15,57
2√75=2▪√75≈2▪8,66≈17,32
8,48+15,57-17,32=24,05-17,32=6,73
3 5 3