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√27+√48-√75=3√3+4√3-5√3=2√3
Obliczone metodą "drzewka":
27/3
9/3
3/3
1
75/5
15/5
3/3
1
48/2
24/2
12/2
6/2
3/3
√27+ √48- √75=√9*3+ √16*3- √25*3=3√3+ 4√3- 5√3=2√3