I have question can HP Prime Solve these two functions?

[tom234]

(05-11-2020 10:18 PM)pinkman Wrote:  Numerical and symbolic solve. Still don’t understand what’s wrong.

The 5 Key in algebraic mode put down [ ].
However, in Text mode it does Matrix?
I don't think this is right?

It did not do that before?

so I have to solve everything in the algebraic entry if I want to use those [ ].