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xkwadrat = 49 - 25
xkwadrat =24
x =pierwiastek z 24 (4 pierwiastki z 6 )
xkw + 2kw = 5kw
xkw = 21
x= pierwiastek z 21
pierwiastek z 21 kw + 6kw = ykw
ykw =57
y = pierwiastek z 57
y=√57
z=2