Question: solve equation Maple 2020

I think I'm going crazy! 

`Maple 2020.1, X86 64 WINDOWS, Jul 30 2020, Build ID 1482634`

solve((20 + 20*T + 2*T*(T + 1))*exp(-T) - 10*exp(-2*T) - 2*T - 10.0 = 0);
                 -10.00000000, -8.309536192, 0.

?????? Why???????

Has anyone gone crazy or what?

Please Wait...