Solve gives wrong solution (in CAS)

tork73 shared this problem 5 years ago
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x=2 should not be a legal solution to this equation...


Solve[lg(5-3x)=lg(x-3)


GeoGebra 5.0.1521b80e14c6d4f44164d3070933c107114

Comments (1)

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But why should GeoGebra assume a Complex valued logaritm when for wxample Solve[x^2+1=0] assume real roots?

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