[Bug]-Missing root in solving equation

[ijabbott]

(03-20-2019 06:22 AM)Aries Wrote:  The (variable) base cannot be negative, it's to be posed >0 hence -1 is not part of the domain
e^((x+3)*ln(x^2+x-2)), for x=-1 you get e^(2*ln(-2)) where ln(-2)=ln(2)+pi*i (i is the imaginary unit)

So how do you explain the TI's ability to include -1 amongst the solutions of (x^2+x-1)^(x+3)=1?