Trey, Amelia, and Cho are discussing the solution set to the equation x2+9=45 .
Trey says the solution is {6} .
Amelia says the solution is {−6,6} .
Cho says the solution is {−6} .
Which person has found the correct solution set?
(1 point)
Responses
Cho
Cho
None of them are correct.
None of them are correct.
Trey
Trey
Amelia
Amelia