rozwiąż równanie. x razy pierwiastek z 5 =x+2
xV5=x+2
xV5-x=2
x(V5-1)=2
x=2/(V5-1) * (V5+1)/(V5+1)
x=(V5+1)/2
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xV5=x+2
xV5-x=2
x(V5-1)=2
x=2/(V5-1) * (V5+1)/(V5+1)
x=(V5+1)/2