125 do potegi -2/3
i
x=3-4pierwiastki z 5
y=5+4piewriastki z 5
x-y=?
pierwsze działanie= 0,04
drugie to
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pierwsze działanie= 0,04
drugie to![3-4\sqrt{5}+5-4\sqrt{5}=8-8\sqrt{5} 3-4\sqrt{5}+5-4\sqrt{5}=8-8\sqrt{5}](https://tex.z-dn.net/?f=3-4%5Csqrt%7B5%7D%2B5-4%5Csqrt%7B5%7D%3D8-8%5Csqrt%7B5%7D)